ICON TDST-41 SAE Assembly instructions

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Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back
of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep
this manual and the receipt in a safe and dry place for future reference. 22h
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright©2022 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Page 2 For technical questions, please call 1-888-866-5797. Item 59158 59159
Specifications
SET 41pc MM Tap and Die 41pc SAE Tap and Die
SCALE METRIC INCH
TAP AND DIE MATERIAL TUNGSTEN MOLYBDENUM
TOOL STEEL
TUNGSTEN MOLYBDENUM
TOOL STEEL
TAP TIP STYLE TAPERED TAPERED
TAP & DIE SIZES
COARSE
THREADS
FINE
THREADS
COARSE
THREADS
FINE
THREADS
M3 x 0.5
M4 x 0.75
M5 x 0.9
M6 x 1.0
M7 x 1.0
M8 x 1.25
M9 x 1.25
M10 x 1.5
M11 x 1.5
M12 x 1.75
M4 x 0.7
M5 x 0.8
M8 x 1.0
M9 x 1.0
M10 x 1.25
M12 x 1.5
4-40
6-32
8-32
10-24
12-24
1/4-20
5/16-18
3/8-16
7/16-14
1/2-13
10-32
1/4-28
5/16-24
3/8-24
7/16-20
1/2-20
PIPE TAP & DIE SIZES 1/8-28BSPT 1/8-27NPT
IMPORTANT SAFETY INFORMATION
Use Precautions
1. Wear ANSI-approved safety goggles and
heavy-duty work gloves during use.
2. Keep work area clean and well lit.
3. Keep bystanders out of the area during use.
4. Do not use when tired or when under the
influence of alcohol, drugs or medication.
5. This product is not a toy. Do not allow
children to play with or near this item.
6. Use as intended only.
7. Inspect before every use; do not use if
parts are loose or damaged. Do not use
cracked or chipped tap/die.
8. Keep the handles clean, dry, and free
from oil and grease at all times.
9. The flutes on these tools are sharp and
can cut you. Handle with care.
10. Do not use any high-speed means, such as a
lathe or drill press, to cut threads with these
Taps and Dies. High-speed use will void the
warranty and may overheat the tool, causing
loss of heat-treatment and premature failure.
11. Taps and Dies are heat-treated,
and not designed to be sharpened. After
considerable use and with corrosion buildup
these tools may lose their cutting edge.
12. Use clamps (sold separately) or other practical ways
to secure and support the workpiece to a stable
platform. Holding the work by hand or against your
body is unstable and may lead to loss of control.
13. Do not apply excessive force on the cutters.
Allow the tool to do the work. Use cutting oil
when tapping or threading hard materials.
14. Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
15. Cleaning (Chasing) damaged threads with either
a tap or die will REMOVE material from the
existing threads. Specialized thread correcting
tools (not included) should be used to repair
damaged threads on critical components.

Page 3For technical questions, please call 1-888-866-5797.Item 59158 59159
Operation Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this document
including all text under subheadings therein before set up or use of this product.
Before using either taps or dies, test the material to determine that it
is not hardened by attempting to mark it with a file.
• If the material marks with a file, material should be cuttable.
• If the material will not mark with a file,
do not cut threads to avoid tool damage.
Tap Instructions
TAPS are used to cut (tapping) or clean (chase) internal threads into
a pre-drilled hole, such as in a nut or component part.
1. To cut an internal thread, first select
the tap of the desired size and have
lubricating or cutting oil ready for use.
2. The proper hole size is very important to
successfully cut good threads. An oversized
hole will result in shallow threads, and poor
holding power. An undersized hole may cause
the tap to wear prematurely or break. Reference
the tap thread chart for proper hole sizes.
3. Insert the square end of the Tap into the
Tap Wrench, turn the threaded side of the
Tap Wrench to secure the Tap firmly.
4. Precisely align the tap with the direction of the
hole. THIS IS ESSENTIAL. The first cut will help
determine the accuracy of the entire finished thread.
5. Start turning the Tap clockwise, keeping the
Tap aligned with the hole. As the Tap turns, it
will bite into the metal and create threads.
6. After every 1/4 to 1/2 turn of progress, depending on
material hardness, rotate the Tap counterclockwise
an equal amount to prevent chips from building
up in the hole and breaking the tap.
7. Lubricate amply with cutting oil while tapping.
Proper lubrication will result in smoother threads,
and increased tool life. Continue tapping
until the Tap passes through the workpiece,
or the desired thread depth is reached.
8. Carefully thread the tap out backwards
and clean out any chips from the hole.
Die Instructions
DIES are used to cut (threading) or clean (chase) external threads, such as on a screw or threaded rod.
NOTE: It will be easier to start the Die correctly if
the end of the work material is slightly chamfered
with a grinder or file (not included).
1. Select the proper Die size for the rod to be threaded.
The rod stock can be no larger than the thread
size of a Die and should be .005″ to .010″ smaller.
Oversized rod stock may damage the Die, and will
make thread cutting difficult. Slightly undersized
rod stock makes turning the Die easier, and will
result in good threads for most applications.
2. Secure the workpiece in a vise or other fixture
(not included). Ensure that the workpiece will
not move or turn while it is being threaded.
Note that the workpiece may be damaged by
the vise during the threading process. Avoid
clamping on critical surfaces and on threads.
3. Insert the Die into the Die Wrench with the text
facing outward. Tighten the screw using the
included Screwdriver. Use the Screw on side of
the Die Wrench to secure the Die firmly in place.
Screw
Die
4. Place the chamfered side of the Die onto
the workpiece, being careful to precisely
align the Die perpendicular to the rod.
5. Begin turning the Die clockwise. The cutting
edges will begin to bite into the material, and
the Die will begin to thread itself onto the rod.
6. As you progress, apply lubrication, using a high-
quality cutting oil. As with the Tap, reverse
the Die to clear the shavings after every 1/4
to 1/2 turn of progress, depending on material
hardness. Continue this forward and back
process, using proper lubrication, until you
have cut the desired length of threads.
7. Then turn the Die counterclockwise
completely off the rod.

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PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS DOCUMENT AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER
OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE
BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR
THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE
MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS
REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS,
AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF
HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO,
OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Limited Lifetime Warranty
Harbor Freight Tools warrants to the original purchaser that this ICON™ product
shall be free from defects in materials and workmanship for its useful life.
If your ICON™ product does not perform in accordance with this warranty, Harbor Freight Tools will, at its
option and expense, repair or replace (or elect to refund the purchase price if we cannot repair or replace),
your ICON™ product, which shall be your sole and exclusive remedy. To obtain warranty service, ICON™
products must be returned with proof of purchase to a Harbor Freight Tools retail store or returned by mail after
contacting Harbor Freight Tools Product Support at 1-888-866-5797 and receiving a return authorization.
This warranty excludes normal wear and tear and does not apply to products subjected to misuse,
use or operation other than for the intended purpose or not in accordance with the product manual,
abuse, accident, modification or alteration, unauthorized repair, improper storage, neglect, or
lack of maintenance. This warranty is in lieu of all other warranties. Harbor Freight Tools is not
liable for incidental, indirect, special, consequential, or punitive damages or costs arising from
the use of this product. Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation may not apply to you. This warranty gives you
specific legal rights, and you may also have other rights which vary from state to state.
ICON is a trademark of Harbor Freight Tools. All other brands and trade
names are the property of their respective owners.
Record Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Specify UPC when ordering:
SAE: 193175457660
Metric: 193175457677
Maintenance and Servicing
1. Clean immediately after use and apply a light
layer of oil or grease to prevent corrosion.
2. Store tools in the provided case in a secure
location, out of the reach of children,
to protect them from moisture.
Note: The hardened tool steel parts of this set are susceptible to
corrosion. Even light corrosion may reduce effectiveness.