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  1. Home
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  3. Tools & Machining
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  5. Cutting Tools
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  7. Porting Tools & Counterbores

Porting Tools & Counterbores (993 items) - Page 3

Scientific Cutting Tools Port Tool, 1-5/8"-12, 2-1/4 in, Straight MS16142-20R
Scientific Cutting Tools

Port Tool, 1-5/8"-12, 2-1/4 in, Straight

Zoro # G8367335
Mfr # MS16142-20R
product price: 
$340.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Solid, 7/16-20 UNJF MS33649-4S
Scientific Cutting Tools

Port Tool, MS33649, Solid, 7/16-20 UNJF

Zoro # G7850857
Mfr # MS33649-4S
product price: 
$204.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 3/4-16 UNJF MS33649-8R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 3/4-16 UNJF

Zoro # G8049081
Mfr # MS33649-8R
product price: 
$239.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Solid, 7/16-20 UNF MS16142-4S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 7/16-20 UNF

Zoro # G8129712
Mfr # MS16142-4S
product price: 
$195.99
/ea
Scientific Cutting Tools Port Tool, RPT, Reamer, 9/16-18 UNJF RPT-8
Scientific Cutting Tools

Port Tool, RPT, Reamer, 9/16-18 UNJF

Zoro # G8147063
Mfr # RPT-8
product price: 
$241.99
/ea
Super Tool Counterbore, 3/8" D, Carbide Tipped 56403
Super Tool

Counterbore, 3/8" D, Carbide Tipped

Zoro # G0330379
Mfr # 56403
product price: 
$116.99
/ea
Super Tool Reduced Shank Counterbore, 3/8" D 52212
Super Tool

Reduced Shank Counterbore, 3/8" D

Zoro # G0331410
Mfr # 52212
product price: 
$82.89
/ea
Super Tool Counterbore, 1-1/16" D, Carbide Tipped 56414
Super Tool

Counterbore, 1-1/16" D, Carbide Tipped

Zoro # G0329898
Mfr # 56414
product price: 
$135.99
/ea
Link 10MM HSS Se 10.32 X 14.29 Drill 16.66 Cbore 12.70 Shank 52.39 Oal 75-L2-525
Link

10MM HSS Se 10.32 X 14.29 Drill 16.66 Cbore 12.70 Shank 52.39 Oal

Zoro # G7637326
Mfr # 75-L2-525
product price: 
$32.59
/ea
Keo Counterbore Set, Metric, 6 pcs., 3F, Fine 902-000-068
Keo

Counterbore Set, Metric, 6 pcs., 3F, Fine

Zoro # G8925463
Mfr # 902-000-068
product price: 
$380.99
/ea
No Product Image Available
Super Tool

Counterbore Pilot, 1/2 X 3/16

Zoro # G007386043
Mfr # 56226
product price: 
$39.49
/ea
Link 1/2" Co 3Fl 0.531 Pilot X 0.789 Cbore 1/2" Shank X 6" Oal 50-CO-188
Link

1/2" Co 3Fl 0.531 Pilot X 0.789 Cbore 1/2" Shank X 6" Oal

Zoro # G7638909
Mfr # 50-CO-188
product price: 
$115.99
/ea
Super Tool Counterbore, 1-1/2" D, Carbide Tipped 56421
Super Tool

Counterbore, 1-1/2" D, Carbide Tipped

Zoro # G0329852
Mfr # 56421
product price: 
$236.99
/ea
Super Tool Counterbore, 5/16" D, Carbide Tipped 56402
Super Tool

Counterbore, 5/16" D, Carbide Tipped

Zoro # G0330412
Mfr # 56402
product price: 
$99.65
/ea
Super Tool Counterbore, 25/32" D, Carbide Tipped 5777812
Super Tool

Counterbore, 25/32" D, Carbide Tipped

Zoro # G0330281
Mfr # 5777812
product price: 
$133.99
/ea
Super Tool Counterbore, 7/16" D, Carbide Tipped 56404
Super Tool

Counterbore, 7/16" D, Carbide Tipped

Zoro # G0330123
Mfr # 56404
product price: 
$108.99
/ea
Link 3/8" HSS Se .406 X .468 Drill .593 Cbore 5/8 Shank 2-11/32 Oal 50-L2-186
Link

3/8" HSS Se .406 X .468 Drill .593 Cbore 5/8 Shank 2-11/32 Oal

Zoro # G7645017
Mfr # 50-L2-186
product price: 
$30.15
/ea
Super Tool Counterbore, 11/16" D, Carbide Tipped 56408
Super Tool

Counterbore, 11/16" D, Carbide Tipped

Zoro # G0330047
Mfr # 56408
product price: 
$113.99
/ea
Hhip 5/16 X 11/32 High Speed Steel 3 Flute Solid  Pilot Counterbore 2007-0020
Hhip

5/16 X 11/32 High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467904
Mfr # 2007-0020
product price: 
$18.29
/ea
Link 8MM HSS Se 8.73 X 11.11 Drill 13.49 Cbore 11.11 Shank 46.04 Oal 75-L2-524
Link

8MM HSS Se 8.73 X 11.11 Drill 13.49 Cbore 11.11 Shank 46.04 Oal

Zoro # G7643809
Mfr # 75-L2-524
product price: 
$29.75
/ea
Hhip No 8 X 11/64" High Speed Steel 3 Flute Solid Pilot Counterbore 2007-0008
Hhip

No 8 X 11/64" High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2468053
Mfr # 2007-0008
product price: 
$14.79
/ea
Hhip 6 Piece High Speed Steel 3 Flute Solid  Pilot Counterbore Set 2007-0003
Hhip

6 Piece High Speed Steel 3 Flute Solid Pilot Counterbore Set

Zoro # G2468148
Mfr # 2007-0003
product price: 
$212.99
/ea
Harvey Tool 0.4375 in. 7/16 Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated 731628-C3
Harvey Tool

0.4375 in. 7/16 Cutter dia. x 1 in. 1 Carbide Flat Bottom Counterbore, 4 Flutes, AlTiN Coated

Zoro # G511325422
Mfr # 731628-C3
product price: 
$146.99
/ea
Harvey Tool 3/16 Cutter dia. x .75  in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes 23412-C8
Harvey Tool

3/16 Cutter dia. x .75 in. 3/4 Flute Length Carbide Flat Bottom Counterbore, 4 Flutes

Zoro # G711326403
Mfr # 23412-C8
product price: 
$58.19
/ea
Garant Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.5 mm 156020 10X5,5
Garant

Counterbore for Through Holes, 180 Deg, Uncoated, 10X5.5 mm

Zoro # G114389555
Mfr # 156020 10X5,5
product price: 
$21.49
/ea
Drill America 3/16" X 3/32" Pilots for Counterbore DEWPIL3/16X3/32
Drill America

3/16" X 3/32" Pilots for Counterbore

Zoro # G1746780
Mfr # DEWPIL3/16X3/32
product price: 
$6.25
/ea
Sold in mult. of 2 for $12.50
Harvey Tool Counterbores - Flat Bottom, 0.3281" (21/64) 23421
Harvey Tool

Counterbores - Flat Bottom, 0.3281" (21/64)

Zoro # G7148604
Mfr # 23421
product price: 
$94.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.0625" (1/16) 23362
Harvey Tool

Counterbores - Flat Bottom, 0.0625" (1/16)

Zoro # G7242858
Mfr # 23362
product price: 
$51.29
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3125" (5/16) 23420-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3125" (5/16)

Zoro # G7155096
Mfr # 23420-C3
product price: 
$95.69
/ea
Keo Counterbore, 1/32 Clearance, Size 3/4, Co 902-000-035
Keo

Counterbore, 1/32 Clearance, Size 3/4, Co

Zoro # G3346673
Mfr # 902-000-035
product price: 
$244.99
/ea
Harvey Tool Counterbores - Flat Bottom, 0.3437" (11/32) 23422-C3
Harvey Tool

Counterbores - Flat Bottom, 0.3437" (11/32)

Zoro # G7157135
Mfr # 23422-C3
product price: 
$115.99
/ea
Drill America No 10 .189mm Machine Screw Solid Counterbore DEWCBRSOL10
Drill America

No 10 .189mm Machine Screw Solid Counterbore

Zoro # G1743999
Mfr # DEWCBRSOL10
product price: 
$13.65
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 18X8.5 mm 156220 18X8,5
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 18X8.5 mm

Zoro # G414375555
Mfr # 156220 18X8,5
product price: 
$44.59
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Flute Length: 1" 25524-C3
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Flute Length: 1"

Zoro # G7262126
Mfr # 25524-C3
product price: 
$166.99
/ea
Drill America No 8 .163mm Machine Screw Solid Counterbore DEWCBRSOL8
Drill America

No 8 .163mm Machine Screw Solid Counterbore

Zoro # G1739695
Mfr # DEWCBRSOL8
product price: 
$13.29
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16) 25528
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.4375" (7/16)

Zoro # G7262756
Mfr # 25528
product price: 
$170.99
/ea
Porting Tools & Counterbores (993 items) - Page 3
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About Porting Tools & Counterbores

Porting Tools & Counterbores are used to improve the flow of air or gas in an engine, turbine, compressor, and more. They are typically used to reduce turbulence in the airflow and increase performance.

Types of Porting Tools & Counterbores

Chainsaw porting tools are commonly used for small engines like lawnmowers, as they can be adjusted easily and quickly. Ported tools are designed for larger engines such as those found in cars and motorcycles. Porting supplies include special cutting tools that allow for precise modifications to be made with minimal effort.

How Porting Tools & Counterbores are Made

Porting tools are usually constructed from hardened steel or aluminum alloy materials that can withstand high temperatures and pressures associated with engine operations. Special compounds may also be applied during the manufacturing process to ensure optimal performance.

Industries that use Porting Tools & Counterbores

Porting Tools & Counterbores can be found in a variety of industries including automotive, aerospace, marine, industrial machinery, and power sports. Professionals such as mechanics, engineers, machinists, technicians often use these tools on the job.

Find the Porting Tools & Counterbores You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of Porting Tools & Counterbores along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.

Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

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counter bore pilotmetric counterbore set5/8 counterborepilot counterboreinterchangeable pilot counterbore
high speed steelscientific cutting toolsmetric shcs1-1/4 in counterboremetric counterbore

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