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Counterbores & Port Tools

Counterbores (sometimes called spotfacers) create a flat-bottomed cavity at the top of an existing hole so that a bolt, nut, or other part is hidden beneath or sits flush with the top of the hole when installed into it. They may have a built-in pilot that cannot be removed, or they may have a removable pilot that can be replaced with pilots of different diameters to allow the tool to accomplish more tasks. Port tools contour an existing hole for a precise fit when installing ports in the hole. The pilot (or tip) of the counterbore or port tool should be the same diameter as the existing hole to keep the tool accurately centered during drilling. These tools are typically used in metalworking tasks.

Counterbore Sets
Counterbore Sets (4)
Counterbores with Built-In Pilots
Counterbores with Built-In Pilots (39)
Counterbores with Interchangeable Pilots
Counterbores with Interchangeable Pilots (21)
Port Tools
Port Tools (4)
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Results per page :  16 | 32 | 48
COUNTERBORE FOR INTERCHANGEABLE PILOT, HIGH SPEED STEEL, 3 FLUTES, 13/32 IN BORE DIA
  • CLEVELAND
  • COUNTERBORE FOR INTERCHANGEABLE PILOT, HIGH SPEED STEEL, 3 FLUTES, 13/32 IN BORE DIA
  • Item # GNF879-46428
  • Mfr. Model # 879-46428
  • EHC: EHC :

  • This counterbore for interchangeable pilot is made of high speed steel and has a ⅜ inch diameter, 3 1/16 inch long shank. It is designed for use with all materials, and meets the standards for ANSI. This counterbore for interchangeable pilot has a bright (uncoated) finish, and has fractional inch measurements. It has a 4 1/16 inch length. Plus it has three flutes and a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $187.10 / EACH

EHC: EHC :
COUNTERBORE, OVERSIZED, FOR ⅜ IN SCREWS, 19/32 IN BORE DIAMETER, 13/32 IN PILOT DIAMETER
  • KEO
  • COUNTERBORE, OVERSIZED, FOR ⅜ IN SCREWS, 19/32 IN BORE DIAMETER, 13/32 IN PILOT DIAMETER
  • Item # WWG2RTP6
  • Mfr. Model # 2RTP6
  • EHC: EHC :

  • This counterbore is made of cobalt and has a ½ inch diameter shank. It is designed for use with all materials, and meets the standards for ISO 9001:2008. This counterbore has a bright (uncoated) finish, and has fractional inch measurements. It has a five-inch length. Plus it has three flutes and a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $124.24 / EACH

EHC: EHC :
PORT TOOL, ¾ IN-16 PORT THREAD, 0.693 IN PILOT DIAMETER, 3.84 IN L, ¾ IN SHANK
  • SCIENTIFIC CUTTING TOOLS
  • PORT TOOL, ¾ IN-16 PORT THREAD, 0.693 IN PILOT DIAMETER, 3.84 IN L, ¾ IN SHANK
  • Item # WWG4XYN9
  • Mfr. Model # MS33649-8R
  • EHC: EHC :

  • This port tool is made of carbide tipped and has a ¾ inch diameter, 2.1200 inch long shank. It is designed for use with steel, and meets the standards for AS5202. This port tool has decimal inch measurements. It has a 3.840 inch length. Plus it has a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $362.03 / EACH

EHC: EHC :
PORT TOOL, 9/16 IN-18 PORT THREAD, 0.507 IN PILOT DIAMETER, 3.38 IN L, ½ IN SHANK DIA
  • SCIENTIFIC CUTTING TOOLS
  • PORT TOOL, 9/16 IN-18 PORT THREAD, 0.507 IN PILOT DIAMETER, 3.38 IN L, ½ IN SHANK DIA
  • Item # WWG4XYJ7
  • Mfr. Model # MS16142-6R
  • EHC: EHC :

  • This port tool is made of carbide tipped and has a ½ inch diameter, 1⅞ inch long shank. It is designed for use with steel, and meets the standards for SAEJ1926, SAEJ514. This port tool has decimal inch measurements. It has a 3⅜ inch length. Plus it has a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $335.66 / EACH

EHC: EHC :
PORT TOOL, ¾ IN-16 PORT THREAD, 0.688 IN PILOT DIAMETER, 3.70 IN L, ¾ IN SHANK
  • SCIENTIFIC CUTTING TOOLS
  • PORT TOOL, ¾ IN-16 PORT THREAD, 0.688 IN PILOT DIAMETER, 3.70 IN L, ¾ IN SHANK
  • Item # WWG4XYJ9
  • Mfr. Model # MS16142-8R
  • EHC: EHC :

  • This port tool is made of carbide tipped and has a ¾ inch diameter, 2.1200 inch long shank. It is designed for use with steel, and meets the standards for SAEJ1926, SAEJ514. This port tool has decimal inch measurements. It has a 3.700 inch length. Plus it has a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $360.05 / EACH

EHC: EHC :
COUNTERBORE, STRAIGHT, 3-FLUTE, BRIGHT, 4.313 IN L, 9/16 IN DIA, HIGH-SPEED STEEL
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $215.39 / EACH

EHC: EHC :
COUNTERBORE PILOT, STRAIGHT, BRIGHT, PILOT 15/32 IN DIA, SHANK 3/16 IN DIA, HIGH-SPEED STEEL
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $59.93 / EACH

EHC: EHC :
COUNTERBORE, OVERSIZED, FOR #10 SCREW, 21/64 IN BORE DIAMETER, 13/64 IN PILOT DIAMETER
  • KEO
  • COUNTERBORE, OVERSIZED, FOR #10 SCREW, 21/64 IN BORE DIAMETER, 13/64 IN PILOT DIAMETER
  • Item # WWG2RTN5
  • Mfr. Model # 55213
  • EHC: EHC :

  • This counterbore is made of cobalt and has a 9/32 inch diameter shank. It is designed for use with all materials, and meets the standards for ISO 9001:2008. This counterbore has a bright (uncoated) finish, and has wire measurements. It has a 4½ inch length. Plus it has three flutes and a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $109.58 / EACH

EHC: EHC :
COUNTERBORE, STD, FOR½ IN SCREW SIZE, ¾ IN BORE DIAMETER, ½ IN PILOT DIAMETER, 5 IN L
  • KEO
  • COUNTERBORE, STD, FOR½ IN SCREW SIZE, ¾ IN BORE DIAMETER, ½ IN PILOT DIAMETER, 5 IN L
  • Item # WWG2RTR1
  • Mfr. Model # 2RTR1
  • EHC: EHC :

  • This counterbore is made of cobalt and has a ½ inch diameter shank. It is designed for use with all materials, and meets the standards for ISO 9001:2008. This counterbore has a bright (uncoated) finish, and has fractional inch measurements. It has a five-inch length. Plus it has three flutes and a straight shank.

    View more View less

    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $166.96 / EACH

EHC: EHC :
COUNTERBORE, STRAIGHT, 3-FLUTE, BRIGHT, 5.125 IN L, 5/8 IN DIA, HIGH-SPEED STEEL
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $250.81 / EACH

EHC: EHC :
CONTINUOUS PILOT COUNTERBORE, 3-FLUTE, STRAIGHT, BRIGHT, 7/16 X 5/8 X 1/2 IN, HIGH-SPEED STEEL
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $413.33 / EACH

EHC: EHC :
PILOT FOR COUNTERBORES, HIGH SPEED STEEL, 3/32 IN SHANK DIAMETER, 3/32 IN SHANK L, HSS
  • CLEVELAND
  • PILOT FOR COUNTERBORES, HIGH SPEED STEEL, 3/32 IN SHANK DIAMETER, 3/32 IN SHANK L, HSS
  • Item # GNFC46538
  • Mfr. Model # 879P-C46538
  • EHC: EHC :

  • This pilot for counterbores is made of high speed steel and has a 3/32 inch diameter, 3/32 inch long shank. It is designed for use with all materials, and meets the standards for ANSI. This pilot for counterbores has a bright (uncoated) finish, and has fractional inch measurements. It has a 1⅜ inch length. Plus it has a straight shank.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $43.88 / EACH

EHC: EHC :
COUNTERBORE PILOT, STRAIGHT, BRIGHT, PILOT 5/16 IN DIA, SHANK 3/32 IN DIA, HIGH-SPEED STEEL
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $53.67 / EACH

EHC: EHC :
COUNTERBORE SET, OVERSIZED, COBALT, 7 PIECES, #6 MIN. SIZE, ½ IN MAX SIZE
  • KEO
  • COUNTERBORE SET, OVERSIZED, COBALT, 7 PIECES, #6 MIN. SIZE, ½ IN MAX SIZE
  • Item # WWG1DBT4
  • Mfr. Model # 1DBT4
  • EHC: EHC :

  • This counterbore set is made of cobalt. It is designed for use with general purpose. This counterbore set has a bright (uncoated) finish, and has fractional inch measurements. Plus it has three flutes.

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    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # N/A
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $746.37 / EACH

EHC: EHC :
COUNTERBORE, STRAIGHT, 3-FLUTE, BRIGHT, 6.125 IN L, 15/16 IN DIA, HIGH-SPEED STEEL
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $373.33 / EACH

EHC: EHC :
COUNTERBORE, HIGH SPEED STEEL, STRAIGHT SHANK, 1/2 X 7 1/2 IN OVERALL LENGTH
Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order. Check Availability:

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $135.08 / EACH

EHC: EHC :
Results per page :  16 | 32 | 48

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