Weaver Master Tools Little Wonder 2019 User manual

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
1
Master Tools Little Wonder®
U.S. Design Patent #D632,318
18-1497-SP-FLY
OWNER’S MANUAL2019

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2www.weaverleathercraft.com

Little Wonder®Attachments Available for the Following
#104 Rivets
Crystals
Spots
Grommets
Slide Loop Staples
Eyelets
2205 Segma Snaps
2206 Snaps
4P Durable Snaps
Double Cap, Rapid
and Jiffy Rivets
Punching Holes
7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
3
Small Machine, Big Possibilities
Congratulations on your purchase of the patented Master Tools Little Wonder®. Handcrafted by our skilled crafts-
people in Mt. Hope, Ohio, this ingenious machine is built using the finest materials, skilled American workmanship
and finishing touches for dependable performance you can count on project after project. This hand-operated
machine features a cam action arm that gives you extra leverage for quick and easy operation with just one hand.
Multi-Function Versatility
The machine comes with a driver and splash anvil for setting #104 Rivets. Check out pages 31 & 32
for a complete list of attachments to expand the capabilities of the Master Tools Little Wonder®.
Machine comes standard with driver and splash
anvil for #104 Rivets. Cap Anvil sold separately.
Actual Size of Hole Punch Tubes
5 6 7 8 9 10
3⁄32" 7⁄64" 1⁄8" 5⁄32" 11⁄64" 3⁄16"

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4
Table of Contents
Page
Unpack Your Box ................................................5
Getting to Know the Little Wonder®..................................6
Quick-Start Guide................................................7
Setting #104 Tubular Rivets..................................... 8-11
Setting Crystals ............................................12 & 13
Setting Spots ..............................................14 & 15
Setting Grommets ..........................................16 & 17
Setting 15S4 Slide Loop Staples ...............................18 & 19
Setting Eyelets .................................................20
Setting 2205 Segma Snaps .......................................21
Setting 2206 (Line 20) Snaps .....................................22
Setting 4P (Line 24) Durable Snaps ................................23
Setting Double Cap, Jiffy and Rapid Rivets ......................24 & 25
Punching Holes ............................................26 & 27
Maintenance ..................................................28
General Troubleshooting .........................................29
Replacement Parts..............................................30
Attachments List ...........................................31 & 32

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
5
Unpack Your Box
The Master Tools Little Wonder®comes completely assembled.
You’ll find the following in your box:
➊Master Tools Little Wonder®Machine
➋Driver Attachment for #104 Rivets
➌Splash Anvil for #104 Rivets
➍Guide
➎Owner’s Manual
➊
➎
➋
➌
➍

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6
Getting to Know the Master Tools Little Wonder®
Handle
Cam
Handle
Stop Pin Cross Bar
Adjustment
Wheel
Driver Shaft
Driver Thumb Screw
Guide
Thumb
Screw
Anvil
Anvil Adapter
Adjustment
Collar
Driver
Guide
Do not operate this machine until you have read and understand the
instructions in this manual. This machine is designed for use with
leather, webbing, coated webbing, fabrics and other man-made
materials. It will set rivets, crystals, spots, grommets, slide loop
staples, eyelets, 2205 segma snaps, 2206 snaps, 4P durable snaps,
double cap, rapid and jiffy rivets as well as punch holes. Use for any
other purpose is prohibited and voids the warranty.
Safety
• Never use this machine unless it is securely
fastened to a workbench.
• Always keep all fingers and body parts away from
moving parts.
• Keep away from children at all times.
Warranty
We warrant our products for a period of one year
from the date of shipment from our factory to be
free from defects in material and workmanship
under correct use, normal operating conditions and
proper application. This warranty does not extend to
any component parts not manufactured by Weaver
Leather, or if the machine is modified in any way.
Weaver Leather makes no express warranties other
than those that are specifically described herein. This
warranty is expressly in lieu of all other warranties
express or implied. There are no implied warranties
of any kind including merchantability or fitness for a
particular purpose. Weaver Leather will in no event
be liable for any incidental or consequential damages
whatsoever, nor for any sum in excess of the price
received for the goods.

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
7
Quick-Start Guide
SPLASH SET RIVET
FIGURE 1
FIGURE 2
FIGURE 4
FIGURE 6
FIGURE 3
FIGURE 5
FIGURE 7
SETTING #104 TUBULAR RIVETS WITH
DRIVER AND SPLASH ANVIL THAT
COME WITH THE MACHINE
See Pages 8 & 9 for complete instructions and troubleshooting tips
You do not need to pre-punch holes in your material to set tubular
rivets. To achieve the best results, we recommend testing a few
rivets in some scrap leather using the troubleshooting tips on
page 9 as your guide.
1) The Little Wonder®comes fully assembled and ready to be mounted
on your workbench. Simply secure the machine to your bench with
your choice of screws or bolts (Figure 1).
2) Locate the #104 splash anvil and the #104 driver and verify that
they are securely tightened into the machine. If the #104 splash
anvil is loose, secure it with the set screw using a 5/32" Allen
wrench (Figure 2). If the #104 driver is loose, tighten the thumb
screw (Figure 3).
3) It is important to obtain the proper distance between the anvil and
the driver. Adjust the stop according to the length of the post on
your rivet using the adjustment wheel located just below the cam
(Figure 4). Turn clockwise to raise the driver or counterclockwise
to lower the driver.
4) Place the #104 rivet into the driver (Figure 5).
5) Insert leather or material that you are using (Figure 6).
6) Pull the handle forward until the rivet is set (Figure 7).
FIGURE 8 FIGURE 9 FIGURE 10
USING THE METAL GUIDE
A metal guide (Figure 8) is included
with the Little Wonder®to help you
maintain consistency when using Little
Wonder®attachments. Loosen the thumb
screw on the right side of the machine
and adjust guide until it rests on the edge
of your strap (Figure 9). Tighten thumb
screw to keep guide in place (Figure 10).
Splash
Anvil
Driver

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8
SPLASH SET RIVETCAP SET RIVET
SPLASH
ANVIL
CAP
ANVIL
You do not need to pre-punch holes in your material to set tubular
rivets. To achieve the best results, we recommend testing a few
rivets in some scrap leather using the troubleshooting tips on page 9
as your guide.
1) Insert the #104 splash anvil or #104 cap anvil (depending on if you
want your rivet with a splash or cap back) into the anvil adapter and
secure with the set screw using a 5/32" Allen wrench (Figure 11).
Insert the #104 driver into the driver shaft and secure with the thumb
screw (Figure 12).
2) It is important, especially when using caps, to obtain the proper
distance between the anvil and the driver. Adjust the stop according to
the length of the post on your rivet using the adjustment wheel located
just below the cam (Figure 13). Turn clockwise to raise the driver or
counterclockwise to lower the driver.
3) Place the #104 rivet into the driver. If using cap, place the cap into the
cap anvil flat side down (Figure 14).
3) Insert leather or material that you are using (Figure 15).
4) Pull the handle forward until rivet is set (Figure 16).
FIGURE 11
FIGURE 13 FIGURE 14
FIGURE 12
FIGURE 15 FIGURE 16
Setting #104 Tubular Rivets
FIGURE 17 FIGURE 18 FIGURE 19
USING THE METAL GUIDE
A metal guide (Figure 17) is included
with the Little Wonder®to help you
maintain consistency when using Little
Wonder®attachments. Loosen the thumb
screw on the right side of the machine
and adjust guide until it rests on the edge
of your strap (Figure 18). Tighten thumb
screw to keep guide in place (Figure 19).

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
9
TROUBLESHOOTING TIPS
FIGURE 20
Rivets should be approximately
1/8" longer for splash (or 1/16"
longer for cap) than the thickness
of the material used
1/16" for Cap1/8" for Splash
Problem: Bent rivet from
too much pressure -OR-
Length of rivet is too long
for material being riveted
Solution: Turn adjustment
wheel clockwise to raise
driver -OR- Use the next size
shorter rivet if your rivet was
too long for your material
Problem: Rivet end is curled
too much from excess pres-
sure or rivet is too long for
application
Solution: Turn adjustment
wheel clockwise to raise
driver or use a shorter rivet
Problem: Loose rivet from
not enough pressure
Solution: Turn adjustment
wheel counterclockwise to
lower driver
Problem: Rivet end is not
curled properly because
not enough pressure was
applied or rivet is too short
Solution: Turn adjustment
wheel counterclockwise
to lower driver or use a
longer rivet
When testing with a cap, the
rivet should be straight and
snug in the cap. A bent rivet
means too much pressure was
applied or you’re using the
wrong size rivet. The driver will
need to be raised by turning the
adjustment wheel clockwise.
Turn the adjustment wheel
counterclockwise for a loose
rivet (Figure 20).
When testing for splash, too
much pressure will continue
to curl the rivet end, cutting
into and creating an indent
in the top of your leather or
material. The ideal amount
of splash should measure
no more than 1/8".
WRONG
WRONG
WRONG
WRONG
CORRECT
CORRECT
Proper Adjustment for Rivet with Cap
Proper Adjustment for Rivet with Splash

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10
SPLASH SET RIVETCAP SET RIVET
Magnetic driver works with plated rivets only. It does not work with
stainless steel, nickel brass or solid brass rivets.
You do not need to pre-punch holes in your material to set tubular
rivets. To achieve the best results, we recommend testing a few
rivets in some scrap leather using the troubleshooting tips on page 11
as your guide.
1) Insert the #104 magnetic driver into the driver shaft and secure with
the thumb screw (Figure 21). Insert the #104 splash anvil or #104 cap
anvil (depending on if you want your rivet with a splash or cap back)
into the anvil adapter and secure with the set screw using a 5/32" Allen
wrench (Figure 22).
2) It is important, especially when using caps, to obtain the proper
distance between the anvil and the driver. Adjust the stop according to
the length of the post on your rivet using the adjustment wheel located
just below the cam (Figure 23). Turn clockwise to raise the driver or
counterclockwise to lower the driver.
3) Place the #104 rivet into the driver (Figure 24). If using cap,
place the cap into the cap anvil flat side down (Figure 25).
4) Insert leather or material that you are using.
5) Pull the handle forward until rivet is set (Figure 26).
FIGURE 21
FIGURE 22 - SPLASH ANVIL FIGURE 22 - CAP ANVIL
FIGURE 25FIGURE 24FIGURE 23 FIGURE 26
Setting #104 Tubular Rivets with Magnetic Driver
FIGURE 27 FIGURE 28 FIGURE 29
USING THE METAL GUIDE
A metal guide (Figure 27) is included
with the Little Wonder®to help you
maintain consistency when using Little
Wonder®attachments. Loosen the thumb
screw on the right side of the machine
and adjust guide until it rests on the edge
of your strap (Figure 28). Tighten thumb
screw to keep guide in place (Figure 29).
SPLASH
ANVIL
CAP
ANVIL

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
11
TROUBLESHOOTING TIPS
FIGURE 30
Rivets should be approximately
1/8" longer for splash (or 1/16"
longer for cap) than the thickness
of the material used
Problem: Bent rivet from
too much pressure -OR-
Length of rivet is too long
for material being riveted
Solution: Turn adjustment
wheel clockwise to raise
driver -OR- Use the next size
shorter rivet if your rivet was
too long for your material
Problem: Rivet end is curled
too much from excess pres-
sure or rivet is too long for
application
Solution: Turn adjustment
wheel clockwise to raise
driver or use a shorter rivet
Problem: Loose rivet from
not enough pressure
Solution: Turn adjustment
wheel counterclockwise to
lower driver
Problem: Rivet end is not
curled properly because
not enough pressure was
applied or rivet is too short
Solution: Turn adjustment
wheel counterclockwise
to lower driver or use a
longer rivet
When testing with a cap, the
rivet should be straight and
snug in the cap. A bent rivet
means too much pressure was
applied or you’re using the
wrong size rivet. The driver will
need to be raised by turning the
adjustment wheel clockwise.
Turn the adjustment wheel
counterclockwise for a loose
rivet (Figure 30).
WRONG
WRONG
WRONG
WRONG
CORRECT
CORRECT
Proper Adjustment for Rivet with Cap
Proper Adjustment for Rivet with Splash
1/16" for Cap1/8" for Splash
When testing for splash, too
much pressure will continue
to curl the rivet end, cutting
into and creating an indent
in the top of your leather or
material. The ideal amount
of splash should measure
no more than 1/8".

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12
You do not need to pre-punch holes in your material to set
5/16" crystals. To achieve the best results, we recommend
testing a few crystals in some scrap leather using the
troubleshooting tips on page 13 as your guide.
1) Insert the anvil into the anvil adapter and secure with the set
screw using a 5/32" Allen wrench (Figure 31). Insert the crystal
setter attachment into the driver shaft and secure with the thumb
screw (Figure 32).
2) It is important to obtain the proper distance between the anvil and the
driver. Turn clockwise to raise the driver or counterclockwise to lower
the driver (Figure 33).
3) Place the crystal into the driver (Figure 34).
4) Insert leather or material that you are using.
5) To set the crystal, pull the handle forward until you start to feel
resistance (Figure 35). Crystals will set without applying much
pressure. You can always go back and apply a bit more
pressure if necessary.
FIGURE 31 FIGURE 32
FIGURE 34
FIGURE 35
FIGURE 36 FIGURE 37 FIGURE 38
USING THE METAL GUIDE
A metal guide (Figure 36) is included
with the Little Wonder®to help you
maintain consistency when using Little
Wonder®attachments. Loosen the thumb
screw on the right side of the machine
and adjust guide until it rests on the edge
of your strap (Figure 37). Tighten thumb
screw to keep guide in place (Figure 38).
Setting Crystals
FIGURE 33

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
13
TROUBLESHOOTING TIPS
FIGURE 39
Problem: Crystal is broken
from too much pressure
Solution: Turn adjustment
wheel clockwise to raise
crystal setter attachment
The crystal should be seated
just slightly into leather with
the prongs curled in on the
underside of the leather. A
broken crystal means too much
pressure was applied, so the
crystal setter attachment will
need to be raised by turning the
adjustment wheel clockwise.
Turn the adjustment wheel
counterclockwise for a loose
crystal with the prongs not
curled in properly (Figure 39).
WRONG CORRECT
Proper Adjustment for Crystals

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14
You do not need to pre-punch holes in your material to set spots.
To achieve the best results, we recommend testing a few spots
in some scrap leather using the troubleshooting tips on page 15
as your guide.
1) Insert the appropriate anvil and spot setter attachment for the spot you
want to set (1/8", 3/16", 1/4", 5/16", 3/8" or 1/2"). Secure the anvil with
the set screw located at the front of the anvil adapter using a 5/32"
Allen wrench (Figure 40). Insert the spot setter attachment into the
driver shaft and secure with the thumb screw (Figure 41).
2) It is important to obtain the proper distance between the anvil and the
driver. Turn clockwise to raise the driver or counterclockwise to lower
the driver (Figure 42).
3) Place the spot into the driver (Figure 43).
4) Insert leather or material that you are using.
5) Pull the handle forward until the spot is set (Figure 44).
FIGURE 40 FIGURE 41
FIGURE 43
FIGURE 44
FIGURE 45 FIGURE 46 FIGURE 47
USING THE METAL GUIDE
A metal guide (Figure 45) is included
with the Little Wonder®to help you
maintain consistency when using Little
Wonder®attachments. Loosen the thumb
screw on the right side of the machine
and adjust guide until it rests on the edge
of your strap (Figure 46). Tighten thumb
screw to keep guide in place (Figure 47).
Setting Spots
FIGURE 42

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
15
TROUBLESHOOTING TIPS
WRONG
Proper Adjustment for Spots
FIGURE 48
Problem: Loose spot with
prongs on the underside not
curled in properly from not
enough pressure
Solution: Turn adjustment
wheel counterclockwise to
lower driver
Problem: Spot is seated too
far into leather
Solution: Turn adjustment
wheel clockwise to raise
driver
The spot should be seated just
slightly into leather with the
prongs curled in on the under-
side of leather. A marred spot
means too much pressure was
applied, so the spotter attach-
ment will need to be raised by
turning the adjustment wheel
clockwise. Turn the adjustment
wheel counterclockwise for a
loose spot with the prongs not
curled in properly (Figure 48).
WRONG CORRECT
Spots should be seated just slightly into leather.

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16
You will need to pre-punch a hole in your material to set a
grommet. To achieve the best results, we recommend testing
a few grommets in some scrap leather using the troubleshooting
tips on page 17 as your guide.
1) Insert the appropriate anvil and driver for the grommet you want
to set (#00, #0, #1, #2, #3, #4). Secure the anvil with the set
screw located at the front of the anvil adapter using a 5/32" Allen
wrench (Figure 49). Insert the driver into the driver shaft and
secure with the thumb screw (Figure 50).
2) It is important to obtain the proper distance between the anvil and
the driver. Turn clockwise to raise the driver or counterclockwise
to lower the driver (Figure 51).
3) Grommet sets in the anvil (bottom setter) (Figure 52); place
pre-punched leather onto grommet (Figure 53); lay washer on
top of leather (Figure 54). Important: Top/good side of leather
should be face down.
4) Pull the handle forward until grommet is set (Figure 55).
FIGURE 49 FIGURE 50
FIGURE 52
FIGURE 53 FIGURE 55FIGURE 54
Setting Grommets
FIGURE 51
GROMMET SIZE HOLE SIZE
#00 3/16"
#0 1/4"
#1 5/16"
#2 3/8"
#4 1/2"

7540 CR 201, PO Box 68 • Mt. Hope, OH 44660-0068 • 800-932-8371 or 330-674-1782
Please call us with any product questions or for technical assistance.
17
TROUBLESHOOTING TIPS
FIGURE 56
Problem: Bottom washer
is smashed from too much
pressure
Solution: Turn adjustment
wheel clockwise to raise
driver
The bottom washer part of
grommet should be nicely
rolled under. If the bottom
washer is smashed, it means
too much pressure was
applied, so the driver will
need to be raised by turning
the adjustment wheel clock-
wise. Turn the adjustment
wheel counterclockwise for a
loose grommet (Figure 56).
WRONG CORRECT
Proper Adjustment for Grommets

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18
You do not need to pre-punch holes in your material to set staples.
To achieve the best results, we recommend testing a few staples
in some scrap leather.
FOR SETTING DECORATIVE STAPLES
WITH THE SPOT ANVIL
1) Insert the spot anvil into the anvil adapter and secure the anvil
with the set screw located at the front of the anvil adapter
using a 5/32" Allen wrench (Figure 57). Insert the slide loop
staple setter attachment into the driver shaft and secure with
the thumb screw (Figure 58).
2) It is important to obtain the proper distance between the anvil and
the driver. Turn clockwise to raise the driver or counterclockwise
to lower the driver (Figure 59).
3) Place the staple into the setter (Figure 60). The setter can be
rotated so you can set your staple at any angle to create a variety
of decorative patterns.
4) Insert leather or material that you are using.
5) Pull the handle forward until staple is set (Figure 61).
FIGURE 57
SPOT
ANVIL
FIGURE 58
FIGURE 60
FIGURE 61
Setting 15S4 Slide Loop Staples
FIGURE 59
LOOP
ANVIL

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Please call us with any product questions or for technical assistance.
19
FIGURE 62 FIGURE 63
FIGURE 65
FIGURE 66
FIGURE 64
FOR SETTING STAPLES
WITH THE LOOP ANVIL
1) Insert the loop anvil into the anvil adapter and secure the anvil
with the set screw located at the front of the anvil adapter using
a 5/32" Allen wrench (Figure 62). To give yourself room to see
the loop anvil clearly, you’ll need to raise the driver by turning
the adjustment wheel clockwise (Figure 63). To lower the driver,
turn the adjustment wheel counterclockwise. Insert the slide loop
staple setter attachment into the driver shaft and secure with the
thumb screw (Figure 64).
2) Place the staple into the setter (Figure 65).
3) Insert leather or material that you are using.
4) Pull the handle forward until staple is set (Figure 66).
FIGURE 67 FIGURE 68 FIGURE 69
USING THE METAL GUIDE
A metal guide (Figure 67) is included
with the Little Wonder®to help you
maintain consistency when using Little
Wonder®attachments. Loosen the thumb
screw on the right side of the machine
and adjust guide until it rests on the edge
of your strap (Figure 68). Tighten thumb
screw to keep guide in place (Figure 69).
FIGURE 70
The staple sould be seated just slightly into
leather with the prongs curled in on the
underside of leather. A marred staple means
too much pressure was applied, so the staple
setter attachment will need to be raised by
turning the adjustment wheel clockwise. Turn
the adjustment wheel counterclockwise for
a loose staple with the prongs not curled in
properly (Figure 70).
CORRECT

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20
You will need to pre-punch a hole in your material to set an
eyelet. To achieve the best results, we recommend testing
a few eyelets in some scrap leather using the troubleshooting
tips below as your guide.
Important: Make sure the top/good side of leather is face down.
1) Insert the appropriate anvil and driver for the eyelet you want to
set (8 mm, 10 mm, 12 mm). Secure the anvil with the set screw
located at the front of the anvil adapter using a 5/32" Allen wrench
(Figure 71). Insert the driver into the driver shaft and secure with
the thumb screw (Figure 72).
2) It is important to obtain the proper distance between the anvil and
the driver. Turn clockwise to raise the driver or counterclockwise
to lower the driver (Figure 73).
3) Place the eyelet onto the anvil (Figure 74).
4) Insert leather or material that you are using. Important: Top/good
side of leather should be facing down.
5) Pull the handle forward until eyelet is set
(Figure 75).
FIGURE 71 FIGURE 72
FIGURE 74 FIGURE 75
Setting Eyelets
FIGURE 73
EYELET SIZE HOLE SIZE
8 mm 3/16"
10 mm 7/32"
12 mm 9/32"
8 mm 10 mm 12 mm
TROUBLESHOOTING TIPS
WRONG
Proper Adjustment for Eyelets
FIGURE 76
Problem: Eyelet post
is smashed from too
much pressure
Solution: Turn adjustment
wheel clockwise to raise driver
Problem: Loose eyelet from
not enough pressure
Solution: Turn adjustment
wheel counterclockwise to
lower driver
The eyelet post should be nicely rolled under. If the eyelet post
is smashed, it means too much pressure was applied, so the
driver will need to be raised by turning the adjustment wheel
clockwise. Turn the adjustment wheel counterclockwise for a
loose eyelet (Figure 76).
WRONG CORRECT