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  1. Home
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  7. Porting Tools & Counterbores

Porting Tools & Counterbores (999 items)

H & H Industrial Products 21 Piece High Speed Steel Interchangeable Pilot Counterbore Set 2007-0023
H & H Industrial Products

21 Piece High Speed Steel Interchangeable Pilot Counterbore Set

Zoro # G7177336
Mfr # 2007-0023
product price:  $124.99
/ea
Hhip 7 Piece High Speed Steel 3 Flute Solid  Pilot Counterbore Set 2007-0002
Hhip

7 Piece High Speed Steel 3 Flute Solid Pilot Counterbore Set

Zoro # G2468175
Mfr # 2007-0002
product price:  $104.99
/ea
Drill America 3/8" X 5/32" Pilot Hole HSS Straight Shank Counterbore DEWCBR3/8
Drill America

3/8" X 5/32" Pilot Hole HSS Straight Shank Counterbore

Zoro # G1742504
Mfr # DEWCBR3/8
product price:  $27.75
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 9/16-18 UNF MS16142-6R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 9/16-18 UNF

Zoro # G8381073
Mfr # MS16142-6R
product price:  $251.99
/ea
Garant Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 11X5 mm 156220 11X5
Garant

Counterbore for Tapping Drill Holes, 180 Deg, Uncoated, 11X5 mm

Zoro # G614375614
Mfr # 156220 11X5
product price:  $24.29
/ea
Drill America 7/32" X 5/32" Pilots for Counterbore DEWPIL7/32X5/32
Drill America

7/32" X 5/32" Pilots for Counterbore

Zoro # G1743019
Mfr # DEWPIL7/32X5/32
product price:  $6.45
/ea
Sold in mult. of 2 for $12.90
Scientific Cutting Tools Port Tool, MS16142, Reamer, 1 1/16-12 UN MS16142-12R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 1 1/16-12 UN

Zoro # G8390681
Mfr # MS16142-12R
product price:  $316.99
/ea
Super Tool Counterbore, 3/4" D, Carbide Tipped 59809
Super Tool

Counterbore, 3/4" D, Carbide Tipped

Zoro # G0329907
Mfr # 59809
product price:  $111.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 1 5/16-12 UN SAEJ1926-16R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 1 5/16-12 UN

Zoro # G8253831
Mfr # SAEJ1926-16R
product price:  $309.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 1 1/16-12 UNJ AS5202-12R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 1 1/16-12 UNJ

Zoro # G8150274
Mfr # AS5202-12R
product price:  $303.99
/ea
Drill America 9/32" X 3/16" Pilots for Counterbore DEWPIL9/32X3/16
Drill America

9/32" X 3/16" Pilots for Counterbore

Zoro # G1743929
Mfr # DEWPIL9/32X3/16
product price:  $7.79
/ea
Sold in mult. of 2 for $15.58
Scientific Cutting Tools Port Tool, MS16142, Solid, 1/2-20 UNF SAEJ1926-05S
Scientific Cutting Tools

Port Tool, MS16142, Solid, 1/2-20 UNF

Zoro # G8276685
Mfr # SAEJ1926-05S
product price:  $219.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 1 3/16-12 UN MS16142-14R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 1 3/16-12 UN

Zoro # G8099795
Mfr # MS16142-14R
product price:  $299.99
/ea
Scientific Cutting Tools Port Tool, MS33649, Reamer, 9/16-18 UNJF MS33649-6R
Scientific Cutting Tools

Port Tool, MS33649, Reamer, 9/16-18 UNJF

Zoro # G7834565
Mfr # MS33649-6R
product price:  $256.99
/ea
Drill America 7/16" HSS Solid Counterbore DEWCBRSOL7/16
Drill America

7/16" HSS Solid Counterbore

Zoro # G1745855
Mfr # DEWCBRSOL7/16
product price:  $28.99
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 1 5/8-12 UN MS16142-20R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 1 5/8-12 UN

Zoro # G8367335
Mfr # MS16142-20R
product price:  $340.99
/ea
Drill America 5/16" X 1/8" Pilots for Counterbore DEWPIL5/16X1/8
Drill America

5/16" X 1/8" Pilots for Counterbore

Zoro # G1742556
Mfr # DEWPIL5/16X1/8
product price:  $9.65
/ea
Sold in mult. of 2 for $19.30
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:  $233.99
/ea
Harvey Tool Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Number of Flutes: 4 25524
Harvey Tool

Counterbores - Flat Bottom - Long Reach, 0.3750" (3/8), Number of Flutes: 4

Zoro # G7260297
Mfr # 25524
product price:  $137.99
/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:  $161.99
/ea
Cleveland Counterbore, 2.187" L, 0.188" dia., Bright C46620
Cleveland

Counterbore, 2.187" L, 0.188" dia., Bright

Zoro # G4866010
Mfr # C46620
product price:  $40.29
/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:  $48.79
/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
Cleveland Counterbore Set, 8 Pieces, Bright C91770
Cleveland

Counterbore Set, 8 Pieces, Bright

Zoro # G4865968
Mfr # C91770
product price:  $1,099.99
/ea
Harvey Tool Counterbores - Flat Bottom 23380
Harvey Tool

Counterbores - Flat Bottom

Zoro # G901019214
Mfr # 23380
product price:  $44.39
/ea
Harvey Tool Counterbores - Flat Bottom, 0.5000" (1/2) 23432
Harvey Tool

Counterbores - Flat Bottom, 0.5000" (1/2)

Zoro # G7160504
Mfr # 23432
product price:  $142.99
/ea
Link 6MM HSS Se 6.30 X 9.52 Drill 10.71 Cbore 7.94 Shank 39.69 Oal 75-L2-523
Link

6MM HSS Se 6.30 X 9.52 Drill 10.71 Cbore 7.94 Shank 39.69 Oal

Zoro # G7643766
Mfr # 75-L2-523
product price:  $28.35
/ea
Hhip 1/4 X 9/32 High Speed Steel 3 Flute Solid  Pilot Counterbore 2007-0016
Hhip

1/4 X 9/32 High Speed Steel 3 Flute Solid Pilot Counterbore

Zoro # G2467938
Mfr # 2007-0016
product price:  $15.99
/ea
Cleveland Pilot for Counterbores, 3/16 in, 3/16 in C46540
Cleveland

Pilot for Counterbores, 3/16 in, 3/16 in

Zoro # G4858712
Mfr # C46540
product price:  $24.15
/ea
Scientific Cutting Tools Port Tool, MS16142, Reamer, 1/2-20 UNF MS16142-5R
Scientific Cutting Tools

Port Tool, MS16142, Reamer, 1/2-20 UNF

Zoro # G8233766
Mfr # MS16142-5R
product price:  $221.99
/ea
Super Tool Reduced Shank Counterbore, 9/16" D 52218
Super Tool

Reduced Shank Counterbore, 9/16" D

Zoro # G0331167
Mfr # 52218
product price:  $118.99
/ea
Keo Counterbore Set, Close Fit, 7 PC, No 6-1/2 In 902-000-040
Keo

Counterbore Set, Close Fit, 7 PC, No 6-1/2 In

Zoro # G2382423
Mfr # 902-000-040
product price:  $524.99
/ea
Keo Metric Counterbore Set DIN373 - Before Thread 902-000-067
Keo

Metric Counterbore Set DIN373 - Before Thread

Zoro # G8925454
Mfr # 902-000-067
product price:  $416.99
/ea
Kodiak Cutting Tools No. 3/4 Counterbores 1/64 Oversize Capscrew Style 5495930
Kodiak Cutting Tools

No. 3/4 Counterbores 1/64 Oversize Capscrew Style

Zoro # G8627047
Mfr # 5495930
product price:  $158.99
/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
Cleveland Port Tool, 2.813" L, 0.250" dia., Bright C46910
Cleveland

Port Tool, 2.813" L, 0.250" dia., Bright

Zoro # G4873543
Mfr # C46910
product price:  $190.99
/ea
Porting Tools & Counterbores (999 items)
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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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metric counterborecounter bore pilotmetric counterbore setinterchangeable pilot counterbore1-1/4 in counterbore
high speed steelcounter bore setcounterbores - flat bottom5/8 counterborepilot counterbore

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