TRI tool 301.5SP User manual

92-1755 Rev. 200324
Model 301.5SP Tube Squaring Machine

ABOUT TRI TOOL INC.
Tri Tool’s extensive experience in the design, development and manufacture of portable
machine tools and welding equipment has resulted in machinery that is designed to meet
the highest standards of quality, safety, and performance. Our products are backed by a
company totally committed to service, integrity, and customer satisfaction.
Tri Tool Services has developed a solid reputation as a trusted provider of dependable and
cost-effective on-site service solutions including turnkey project management, machining
services, and mechanized and manual code welding services using experienced and well-
trained machinists and welders.
In addition to developing industry leading machining and welding equipment, Tri Tool’s
engineering team provides custom equipment design and manufacturing solutions to suit
the most rigorous requirements of our customers’ special applications.
Please contact us for more information on any of our products or services. Company
representatives are available for demonstrations of most of our products at your facility.
©Copyright 2015 Tri Tool Inc. All rights reserved.
Printed in the USA

TABLE OF CONTENTS
1. ABOUT THE MANUAL 3
2. SAFETY 3
3. GENERAL DESCRIPTION 7
4. SPECIFICATIONS 8
5. MAINTENANCE 10
6. OPERATION 11
7. CUTTING SPEEDS AND FEEDS 17
8. SADDLE SETS 18
9. TOOL BITS 26
10. TROUBLESHOOTING 28
11. ACCESSORIES 29
12. ILLUSTRATED PARTS BREAKDOWN 30
92-1755 Rev. 200324
Model 301.5SP Tube Squaring Machine

TRI TOOL INC. Warranty
All products manufactured by Tri Tool Inc. are warranted to be free from defects in materials
and workmanship under normal use. Effective October 12, 2018, the period of this warranty
shall be three years from the date of shipment for all products, except for welding and
custom equipment which shall be one year from the date of shipment.
The purchaser shall bear all shipping, packing and insurance costs and all other costs to
and from a designated repair service center. The product will be returned to the purchaser
freight prepaid and billed to the purchaser.
This warranty is not transferable and will not apply to tool bits or other consumables, or to
those products that have been misused, abused, or altered without the express permission
in writing by Tri Tool Inc.
Neither this warranty nor any other warranty, expressed or implied, including implied
warranties of mechanical ability, tness for a particular use, or merchantability, shall
extend beyond the warranty period. No responsibility is assumed for any incidental or
consequential damages.
Some states do not allow limitations on how long an implied warranty lasts and some states
do not allow the exclusion or limitations incidental or consequential damages, so the above
limitation of exclusion does not apply to all purchasers. This warranty gives the purchaser
specic legal rights. Other rights vary from state to state.
Tool Bit Resharpening Policy
Tri Tool Inc. can not resharpen badly gouged, chipped, or broken tool bits. Check the tool
bits before you send them and package them well. Within two working days of receipt, the
tool bits are evaluated and the customer is contacted for authorization.
The customer will receive a price and a scheduled return shipment date. The price structure
is available from your Tri Tool Inc. sales representative.
Tool bits that are not suitable for resharpening are returned with the tool bits that were
resharpened, unless Tri Tool Inc. is instructed otherwise.
The customer is responsible for shipping charges to and from Tri Tool Inc.
This policy only covers tool bits manufactured by Tri Tool Inc.

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
1. ABOUT THE MANUAL
1.1 COPYRIGHT
Copyright 2015. Proprietary property of Tri Tool Inc. No reproduction, use, or
duplication of the information shown hereon is permitted without the express
written consent of Tri Tool Inc.
1.2 DISCLAIMER
The instructions and descriptions in this manual were accurate when the manual
was written. However, the information in the manual is subject to change without
notice. Check for updated information before you start any job. The Tri Tool Inc.
web site has the most current information.
Do not operate or work on this equipment unless you have read and understood
the instructions in this Manual. Failure to follow the instructions or follow the
safety instructions could result in serious injury or death. This manual describes
conditions and hazards that are common and anticipated during equipment
operation. No manual can address all conditions which may occur.
2. SAFETY
2.1 SAFETY SYMBOLS
The manual may contain one or more safety symbols. These symbols and the
associated text warn you of potentially hazardous conditions. Examples of the
safety symbols and the associated text follow:
CAUTION
CAUTION: Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury, or cause property damage.
DANGER
DANGER: Indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
WARNING: Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.

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TRI TOOL INC.
92-1755 Rev. 200324
2.2 PERSONAL PROTECTIVE EQUIPMENT
• Use standard safety equipment such as: hard hats, safety shoes, safety
harnesses, protective clothes, and other safety devices when appropriate.
• Wear safety glasses.
• Do not wear loose clothing or jewelry.
• Wear nonskid footwear.
• Secure long hair.
2.3 PERSONNEL
• Only personnel who are trained or are being trained may operate the
equipment.
• Keep the operation manual available where the equipment is used.
• The operator must read the operation manual before using the equipment.
• The equipment must be operated in accordance with the manual information.
• The operator must follow the safety precautions in this manual and good
engineering practices to reduce the risk of injury.
• Before using the equipment, the operator must ensure that all safety
messages on the equipment are legible.
2.4 WORK AREA
• Keep the work area clean.
• Keep the area well lit.
• Keep items such as; electrical cords, cables, rags, rigging straps, away from
rotating equipment.
• Do not use power-cutting tools in the presence of ammable liquids and
gases.
• Do not let visitors or untrained personnel near tools that are in use.
• Ensure all observers wear eye protection.
• Keep proper footing at all times.
DANGER
DANGER: Do not wear gloves when you use operate the equipment.
If you are using the index trip mechanism, a glove may be caught or
pulled into the pinch point created by the equipment head. This will
result in serious personal injury.

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
2.5 AREA EQUIPMENT
• Secure the pipe with clamps, vises, chains or straps.
• Ensure that both sides of the pipe at the cut site is fully supported so that the
pipe will not move after the cut is completed. Long lengths of pipe may be
under load and the separation of the pipe can release pressure. This pressure
can cause both sides of the pipe to move.
2.6 TOOL CARE
• Keep tools in good operating condition. Sharp tool bits perform better and are
safer than dull tool bits.
• Do not use damaged tools. Always check your tools for damage especially if a
tool has malfunctioned, been dropped or hit, check it for damage.
• Before you start operating the equipment, do no-load tests and feed function
checks.

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TRI TOOL INC.
92-1755 Rev. 200324
2.7 TOOL USE
• Use the right tool and tool bit for the job. Contact Tri Tool to help with your
application.
• Keep the tool bits fully engaged in the tool bit holders. Loose bits are sharp
and can cause cuts or punctures.
• Disconnect power supply during setup and maintenance. Use all ‘Stop’ or
Shut off’ features available when changing or adjusting tool bits, maintaining
the tool, or when the tool is not in use.
• Remove adjusting keys and wrenches before applying power to the
equipment. Check the tool before turning it on to make sure that all keys and
wrenches have been removed.
• Do not force tools. Tools and tool bits function better and safer when used at
the recommended speeds.
• Do not reach into rotating equipment.
• Do not reach into the rotating head stock to remove chips, to make
adjustments, or to check the surface nish.
• Handle chips with care. Chips have very sharp edges and are hot. Do not try
to pull chips apart with bare hands.
• Store tools properly. Disconnect tools from the power source, remove the tool
bits, and store in a safe place.

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
3. GENERAL DESCRIPTION
The 301.5SP (Short Perch) Tube Squaring Tool is designed specically to
prepare tubes for autogenous welding.
The 301.5SP will face .125” (3.2mm) to 1.500” (38.1mm) outside diameter tubing
with a wall thickness up to .125” (3.2mm). The 301.5SP uses a tool-less OD
saddle clamping system for holding and rounding the tube.
The 301.5SP accepts its torque through the saddle clamping system.
The Standard saddle clamping system requires a straight length of tube .60”
(15.2mm) long.
The Short Perch saddle clamping system requires a straight length of tube .19”
(4.8mm) long.
Speed is controlled by a variable speed electric motor. Feed is cam actuated with
an auto retract. The feed handle is at a right angle to the cutter head.
DESIGNATIONS FOR THE MODEL 301.5SP
Model No. P/N Description
301.5SP-E120 01-2223 120VAC Electric Motor (Metabo)
301.5SP-E220 01-2224 220VAC Electric Motor (Metabo)
301.5SP-B 01-2221 Electric Motor, Battery Powered,
18V (120V Charger)
301.5SP-B 01-2222 Electric Motor, Battery Powered,
18V (220V Charger)
301.5SP-E100 01-2398 Electric Motor (Makita),
100V (Japan only))

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TRI TOOL INC.
92-1755 Rev. 200324
4. SPECIFICATIONS
MODEL 301.5SP with Motor
POWER REQUIREMENTS
Model 301.5SP 120 120 VAC +/- 10%, 50 - 60 Hz
Model 301.5SP 220 220 VAC +/- 10%, 50 - 60 Hz
WEIGHTS
Base Machine 5.1 lbs. (2.3 Kg)
Cordless Metabo Motor 4.2 lbs. (1.9 Kg)
Corded Metabo Motor 6.4 lbs. (2.9 Kg)
6.9in
175mm
6.3in
160mm
10.4in
263mm
Saddle
Feed Handle
.20" (5.0mm)
Travel
16.4in
416mm
15.7in
398mm
Cutter Head
Chip Guard
Toolless
Saddle Change
Figure: 1. Envelope Drawing Corded Motor (120V, 220V)

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
Figure: 2. Envelope Drawing Cordless Motor (18VDC)
12.7in
322mm
6.9in
175mm
6.3in
160mm
Saddle
Feed Handle
.20" (5.0mm)
Travel
11.3in
287mm
10.6in
270mm
Cutter Head
Chip Guard
Toolless
Saddle Change

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TRI TOOL INC.
92-1755 Rev. 200324
5. MAINTENANCE
5.1 MAINTENANCE PROTOCOL
• Clean and Coat components with a light lm of oil prior to use. Refer to Fig. 3.
• Lubricate bearing and gears with a high string utility grease (P/N 68-0020).
• Use a clean, non-detergent oil, preferably SAE 10 (90 SSU) or lighter.
• If the Model 301.5SP is operated in the vertical position (cutting head up),
turn it upside down and remove the chips and/other debris after each bevel
has been completed.
CAUTION
CAUTION: If the chips are not removed, the tool life may be severely
shortened.
• Disassembly of the Model 301.5SP will void the warranty, except when
performed by a Tri Tool Inc. designated repair technician.
Figure: 3. Sites to Clean
Clean
Clean

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
6. OPERATION
6.1 GUIDELINES FOR SELECTING A TOOL BIT
CAUTION
CAUTION: The use of dull or improperly designed Tool Bits or Tool
Bits not manufactured by Tri Tool Inc. may result in poor performance
and may constitute abuse of this machine and therefore void the Tri
Tool Inc. factory warranty
• Select a tool bit according to the tubing material, tubing size, and how critical
it is to have a near burr free end.
• A standard entrance angle tool bit is recommended for carbon steel. These
tool bits also work well with some stainless steel applications where a near
burr free end is not a critical requirement.
• A high entrance angle tool bit is recommended for most stainless steels.
Generally, this is the most suitable edge geometry for about 90% of all the
stainless steel tubing applications.
• An extra hook angle tool bit is recommended for stainless steels that are
very soft. These stainless steels include materials like 316L, which have
been bright hydrogen annealed, vacuum annealed or annealed and Electro-
polished. Electro-polished stainless steel has a micro-thin surface, which
is high in Cr and Ni, which makes it very soft, but tough and difcult to cut
without a burr.
• The M-42 tool bits are for use with the exotic alloys where the high heat
resistance is required to avoid burning the cutting edge of the tool bit. M-42
can improve the life expectancy of the tool bit under some conditions on
stainless steel. Since M-42 tool bits are more brittle than the standard M-2
tool bits, there is a much greater risk of damaging the M-42 tool bit when
installing the tubing in the Tube Squaring Machine. Loss of tool bits from
damaged edges may not offset the improved cutting life that those tool bits
may provide. Some exotic alloys may require tool bits with both the extra hook
angle as well as the M-42 tool steel for heat resistance.

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TRI TOOL INC.
92-1755 Rev. 200324
6.2 INSTALL THE TOOL BIT
CAUTION
CAUTION: Make sure that the Model 301.5SP is disconnected from the
power source before you install a tool bit.
1. Insert the Tool Bit into the slot in the Cutting Head, Refer to Fig. 4. Make sure
the cutting edge of the tool bit is on the radical centerline. Do not install the
tool bit backwards.
• This position is used for .100” (25.4 mm) and smaller diameter tubing. This
is the designed working position of the tool bit and will leave virtually no
burr with standard tubing. When working with Electro-polished stainless
steel tubing, use slow cutting speeds to minimize the ID burr. The tool bit
may be reversed.
• Use the reversed position for tubing with an ID greater than .100”
(25.4 mm). With the extreme shear cutting action, the burr on the ID will
be virtually eliminated.
2. Use the Hex wrench to tighten the set screws.
Hex Wrench
Tool Bit
Tool Bit
Cutting Edge Cutting Edge
Figure: 4. Tool Bit Installation

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
6.3 INSTALL A SADDLE IN THE MODEL 301.5SP
1. Select a Saddle for the desired diameter of the tubing to be squared. Refer to
section 8, Saddle Sets.
2. Loosen the two thumbscrews and rotate the D-Clip washers.
3. Use the Saddle Quick Release to install the top half of the saddle. Refer to
Fig. 5.
Feed Handle
Figure: 5. Install Upper Saddle Half
D-Clip Thumbscrew
D-Clip
Housing
Saddle Quick Release
Saddle Clamping Knob
Upper Saddle
Housing
4. Turn the Saddle Clamping Knob counterclockwise to move the Saddle up.

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TRI TOOL INC.
92-1755 Rev. 200324
5. Place the Bottom Saddle half in the Housing. Lightly tighten the Saddle
Thumbscrew into the Bottom Saddle half. Refer to Fig. 6.
Figure: 6. Install Lower Saddle Half
Feed Handle
Housing
Saddle Quick Release
Saddle Clamping Knob
Upper Saddle
Lower Saddle
Housing
D-Clip
D-Clip Thumbscrew
6. Turn the D-Clip Washers so the washer is touching on the outer diameter of
the Bottom Saddle half. Tighten the two D-Clip Thumbscrews.
6.4 INSERT THE TUBE
1. Insert the tube to be machined in the front of the Model 301.5SP. Move the
tube or pipe approximately 1/16” (1.6 mm) from the tool bit.
CAUTION
CAUTION: Do not let the tool bit touch the tube or pipe. This will
damage the tool bit or the Tube Squaring Machine when power is
applied.
2. Tighten the Saddle Clamping Knob to tighten the tube in the Saddle.

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
6.5 OPERATION SEQUENCE
1. Connect the Model 301.5SP to the power source.
1. Pull the Trigger to start rotation of the Cutting Head, Refer to section 7,
Cutting Speeds and Feeds.
2. Use the Feed Handle to feed the Shaft with the tool bit into the work.
3. The Metabo Motor Speed Control is in the Trigger Guard. Use it to adjust the
cutting speed.
CAUTION
CAUTION: The Two Speed Gearbox Knob should be in the 1st gear
position. If the Knob does not snap into the desired position, turn the
chuck by hand slightly until the knob snaps into place. Put the speed
control in the drill position.
• To obtain a minimum burr tube end, avoid heat build up. When the tube
or the tool bit gets hot, the tube material starts to ow or push away from
the tool bit edge in the form of a burr, instead of being cut cleanly with a
minimum burr. Keep the RPMs low to avoid generating excessive heat. An
excessive cutting speed will generate unwanted heat.
• Keep the chip curl loose by avoiding very deep cuts. A dull tool bit will not
do the job right, so be sure that there is a sharp tool bit mounted in the
Machine.
4. Rotate the Feed Handle clockwise to bring the Cutting Head and tube closer
together. The machining operation begins when the tool bit contacts the tube
or pipe.
5. If the tube end is not square to the tube axis, the tool bit will contact only a
small segment of the tube during each revolution. To avoid tool bit damage,
use a very slow feed rate until the tool bit contacts the tube continually for at
least one revolution.
6. Adjust the cutting RPM with the Speed Control Trigger until it is just above
the required cutting speed as the tool bit enters the cut. The tool will slow
down slightly as the cutting load increases. Apply additional power to hold the
cutting speed.
7. Observe the chip as the Machine is cutting. The ideal chip will come off in a
loose pig tail spiral. A chip that is coming off in a tight straight spiral indicates
that the feed is too heavy. A straight or slightly curled chip normally indicates
that the feed is too light. Back off the feed as required to break the chips and
let them fall away.

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TRI TOOL INC.
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8. If a signicant amount of stock must be removed, occasionally back out of the
cut and let the tool bit spin free in the air to cool. Remove any chips, they may
harm the electro-polished tube.
9. Rotate the Feed Handle clockwise until the end of the pipe is completely
machined.
CAUTION
CAUTION: Be careful not to let the tool bit cut into the Saddle or the
Saddle Adapter.
10. Discontinue the feed and allow the Cutting Head to rotate one time for
stainless steel and up to three times for other materials. This will improve the
nish of the prep surface. Never let a tool bit ‘rub’ the surface of a stainless
steel tube without cutting. This will work harden the material and make it
difcult for the tool bit to get under the material to nish the cut. This will also
cause excessive tool bit wear.
11. For precise cuts, engage the tool bit into the end of the tube and use the
indicator sleeve located on the Feed Handle to check the depth of the cut.
The graduations are in .005” (.13mm) increments.
12. Rotate the Feed Handle counterclockwise to separate the Cutting Head and
the tube.
13. Release the Trigger to stop the Cutting Head rotation.
14. Continue to rotate the Feed Handle counterclockwise until the Cutting Head
clears the tube or pipe by at least 1/8” (3.2 mm) or more.
15. Loosen the Clamp Knob Assy to release the tube or pipe.
16. Remove all chips before starting the next end prep.

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Model 301.5SP Tube Squaring Machine
92-1755 Rev. 200324
7. CUTTING SPEEDS AND FEEDS
7.1 CUTTING SPEEDS
True DIA
RPM for
200 in/min
(5080 mm/min)
RPM for
250 in/min
(6350 mm/min)
RPM for
300 in/min
(7620 mm/min)
.250" (6.4 mm) 255 318 382
.375" (9.5 mm) 170 212 255
.500" (12.7 mm) 127 159 191
.750" (19.1 mm) 85 106 127
1.00" (25.4 mm) 64 80 95
1.25" (31.8 mm) 51 64 76
1.50" (38.1 mm) 42 53 64
2.00" (50.8 mm) 32 40 48
*Cutting Speeds are approximate. Reducing the RPM will signicantly increase tool bit life
and reduce the formation of burrs.
Use 200 surface inches per minute (5080 surface millimeters per minute) for:
• Stainless steels in general when no coolant is allowed, all heavy-wall tube
and some chrome/molybdenum steels.
Use 250 surface inches per minute (6350 surface millimeters per minute) for:
• Mild steels and some thin wall stainless steels when coolants are
permitted and applied.
Use 300 surface inches per minute (7620 surface millimeters per minute) for:
• Aluminum and thin-wall mild steel and tube with coolants.
7.2 FEED RECOMMENDATIONS
Use very light feed for initial facing or until a continuous cut is established. This
is very important for longer tool bit life when cutting through ame cut or out-of-
round pipe ends.
Use adequate feed, .003” to .006” (.08 mm to .15 mm) per revolution thereafter,
to establish a continuous chip cut.
• If the feed is too light, only light stringer chips will be removed.
• If the feed is too heavy, the drive will start to overload and the chip will start to
have a rough or torn appearance.
Stainless steel, which work hardens, must be worked with a heavy enough feed
to prevent work hardness (.003” to .006” or .08 mm to .15 mm feed)
Do not let the tool bit burnish the surface.
Reduced feeds and speeds will normally minimize chatter problems.

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TRI TOOL INC.
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8. SADDLE SETS
8.1 STANDARD SADDLES
Figure: 7. Standard Saddle Sets
SADDLE SET PART NUMBERS
Pipe Size Fraction Decimal Metric Saddle P/N
1/8" .125" 3.18 mm 67-4774
5/32" .156" 3.96 mm 67-4775
.158" 4.00 mm 67-4776
3/16"
.188" 4.78 mm 67-4777
.197" 5.00 mm 67-4778
.218" 5.54 mm 67-4779
.236" 6.00 mm 67-4780
1/4" .250" 6.35 mm 67-4781
.276" 7.00 mm 67-4782
9/32" .281" 7.14 mm 67-4783
.283" 7.20 mm 67-4784
5/16" .313" 7.95 mm 67-4785
.315" 8.00 mm 67-4786
11/32"
.344" 8.74 mm 67-4787
.354" 9.00 mm 67-4788
.359" 9.13 mm 67-4789
.365" 9.27 mm 67-4790