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Porting Tools & Counterbores

72 products

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  • $146.16 - $146.16
    $146.16
    $353.99
    $353.99 - $353.99
    $353.99

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

    SCIENTIFIC CUTTING TOOLS
    In stock

    Mfr #: MS16142-6R SCIENTIFIC CUTTING TOOLS MS161426R Port Tool Reamer Pilot SAEJ1926 SAEJ514 O-Ring Boss Number of Flutes 4 Tube Dia 0.375 In Thre...

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    $146.16 - $146.16
    $146.16
    $353.99
    $353.99 - $353.99
    $353.99
  • $49.30 - $49.30
    $49.30
    $125.99
    $125.99 - $125.99
    $125.99

    7 Piece High Speed Steel 3 Flute Solid Pilot Counterbore Set

    HHIP
    Low stock

    Mfr #: 2007-0002 High speed steel; 7 Piece set; #6, 8, 10, 1/4, 5/16, 3/8, 1/2"; Continuous pilot counterbores cut rapidly, smoothly and accuratel...

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    $49.30 - $49.30
    $49.30
    $125.99
    $125.99 - $125.99
    $125.99
  • $11.60 - $11.60
    $11.60
    $18.23
    $18.23 - $18.23
    $18.23

    M5 X 5.5mm HSS 3 Flute Straight Shank Solid Pilot Counterbore

    HHIP
    In stock

    Barcode/UPC/EAN: 769053091112 Intended for inventory replenishment and standardization. chosen for predictable fit and professional handling, he...

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    $11.60 - $11.60
    $11.60
    $18.23
    $18.23 - $18.23
    $18.23
  • $45.24 - $45.24
    $45.24
    $110.27
    $110.27 - $110.27
    $110.27

    Counterbore, 1/32 Clearance, Size 3/8, Co

    KEO
    In stock

    Mfr #: 55223 Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as ...

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    $45.24 - $45.24
    $45.24
    $110.27
    $110.27 - $110.27
    $110.27
  • $33.06 - $33.06
    $33.06
    $89.34
    $89.34 - $89.34
    $89.34

    Counterbore, Close Fit, Size 1/4, Cobalt

    KEO
    In stock

    Mfr #: 55215 Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as ...

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    $33.06 - $33.06
    $33.06
    $89.34
    $89.34 - $89.34
    $89.34
  • $61.48 - $61.48
    $61.48
    $145.19
    $145.19 - $145.19
    $145.19

    Counterbore, 1/32 Clearance, Size 1/2, Co

    KEO
    Low stock

    Mfr #: 55229 Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as ...

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    $61.48 - $61.48
    $61.48
    $145.19
    $145.19 - $145.19
    $145.19
  • $44.08 - $44.08
    $44.08
    $94.31
    $94.31 - $94.31
    $94.31

    Counterbore, Close Fit, Size #10, Cobalt

    KEO
    In stock

    Mfr #: 55212 Price For: Each Type: Built-in Pilot Material: Cobalt Steel Application: For Use In Alloys, Cast Iron, Stainless Steel And Titanium N...

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    $44.08 - $44.08
    $44.08
    $94.31
    $94.31 - $94.31
    $94.31
  • $0.00 - $0.00
    $0.00
    $46.31
    $46.31 - $46.31
    $46.31

    21/32"x3/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR21/32 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wea...

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    $0.00 - $0.00
    $0.00
    $46.31
    $46.31 - $46.31
    $46.31
  • $0.00 - $0.00
    $0.00
    $80.39
    $80.39 - $80.39
    $80.39

    1-3/16"x5/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR1-3/16 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for we...

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    $0.00 - $0.00
    $0.00
    $80.39
    $80.39 - $80.39
    $80.39
  • $0.00 - $0.00
    $0.00
    $23.46
    $23.46 - $23.46
    $23.46

    5/16" HSS Solid Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBRSOL5/16 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and to...

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    $0.00 - $0.00
    $0.00
    $23.46
    $23.46 - $23.46
    $23.46
  • $0.00 - $0.00
    $0.00
    $11.15
    $11.15 - $11.15
    $11.15

    #4 .111mm Machine Screw Solid Counterbore

    DRILL AMERICA
    Low stock

    Mfr #: DEWCBRSOL4 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and tough...

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    $0.00 - $0.00
    $0.00
    $11.15
    $11.15 - $11.15
    $11.15
  • $0.00 - $0.00
    $0.00
    $46.98
    $46.98 - $46.98
    $46.98

    35/64"x3/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    Low stock

    Mfr #: DEWCBR35/64 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wea...

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    $0.00 - $0.00
    $0.00
    $46.98
    $46.98 - $46.98
    $46.98
  • $0.00 - $0.00
    $0.00
    $34.19
    $34.19 - $34.19
    $34.19

    13/64"x3/32" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    Low stock

    Mfr #: DEWCBR13/64 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wea...

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    $0.00 - $0.00
    $0.00
    $34.19
    $34.19 - $34.19
    $34.19
  • $0.00 - $0.00
    $0.00
    $31.14
    $31.14 - $31.14
    $31.14

    1/4"x3/32" HSS Aircraft Counterbore 1/4" Shank

    DRILL AMERICA
    In stock

    Mfr #: DEWA/CCBR1/4 Aircraft counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardnes...

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    $0.00 - $0.00
    $0.00
    $31.14
    $31.14 - $31.14
    $31.14
  • $0.00 - $0.00
    $0.00
    $47.87
    $47.87 - $47.87
    $47.87

    43/64"x3/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR43/64 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toug...

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    $0.00 - $0.00
    $0.00
    $47.87
    $47.87 - $47.87
    $47.87
  • $0.00 - $0.00
    $0.00
    $31.62
    $31.62 - $31.62
    $31.62

    #10 13/64" Continuous Pilot Capscrew Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCSCBR10 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and tough...

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    $0.00 - $0.00
    $0.00
    $31.62
    $31.62 - $31.62
    $31.62
  • $0.00 - $0.00
    $0.00
    $36.95
    $36.95 - $36.95
    $36.95

    1/2"x3/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR1/2 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughn...

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    $0.00 - $0.00
    $0.00
    $36.95
    $36.95 - $36.95
    $36.95
  • $0.00 - $0.00
    $0.00
    $38.82
    $38.82 - $38.82
    $38.82

    31/64"x3/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR31/64 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wea...

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    $0.00 - $0.00
    $0.00
    $38.82
    $38.82 - $38.82
    $38.82
  • $0.00 - $0.00
    $0.00
    $37.43
    $37.43 - $37.43
    $37.43

    23/64"x3/32" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR23/64 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wea...

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    $0.00 - $0.00
    $0.00
    $37.43
    $37.43 - $37.43
    $37.43
  • $0.00 - $0.00
    $0.00
    $33.30
    $33.30 - $33.30
    $33.30

    3/8"x5/32" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR3/8 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear ...

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    $0.00 - $0.00
    $0.00
    $33.30
    $33.30 - $33.30
    $33.30
  • $0.00 - $0.00
    $0.00
    $15.59
    $15.59 - $15.59
    $15.59

    #10 .189mm Machine Screw Solid Counterbore

    DRILL AMERICA
    Low stock

    Mfr #: DEWCBRSOL10 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toug...

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    $0.00 - $0.00
    $0.00
    $15.59
    $15.59 - $15.59
    $15.59
  • $0.00 - $0.00
    $0.00
    $32.39
    $32.39 - $32.39
    $32.39

    3/8"x3/32" HSS Aircraft Counterbore 1/4" Shank

    DRILL AMERICA
    In stock

    Mfr #: DEWA/CCBR3/8 Aircraft counterbore High-speed steel tools are good for most general purpose applications, offering a combination of hardness...

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    $0.00 - $0.00
    $0.00
    $32.39
    $32.39 - $32.39
    $32.39
  • $0.00 - $0.00
    $0.00
    $74.70
    $74.70 - $74.70
    $74.70

    1-1/8"x5/16" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR1-1/8 High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wea...

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    $0.00 - $0.00
    $0.00
    $74.70
    $74.70 - $74.70
    $74.70
  • $0.00 - $0.00
    $0.00
    $30.95
    $30.95 - $30.95
    $30.95

    5/16"x3/32" Pilot Hole HSS Straight Shank Counterbore

    DRILL AMERICA
    In stock

    Mfr #: DEWCBR5/16 Counter bore High-speed steel tools are good for most general purpose applications, offering a combination of hardness and tough...

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    $0.00 - $0.00
    $0.00
    $30.95
    $30.95 - $30.95
    $30.95

About Porting Tools & Counterbores

Porting Tools & Counterbores products for tools & machining projects, contractor purchasing, and facility maintenance.

This collection brings together porting tools & counterbores and related supplies to help buyers move from a broad category into specific products with less guesswork. It is designed for contractors, maintenance teams, facility buyers, and service crews who need practical product information, clear internal links, and easy access to relevant items.

What you can find in this collection

  • Porting tools & counterbores and related supplies
  • Product options commonly used in tools & machining projects, contractor purchasing, and facility maintenance
  • Examples such as 21 Piece High Speed Steel Interchangeable Pilot Counterbore Set, 5/16" HSS Solid Counterbore, and #10 .189mm Machine Screw Solid Counterbore
  • 64 product listings organized under this category

How to choose the right products

  • Start with the job application, then compare size, material, rating, finish, compatibility, and package quantity.
  • For replacement or repair work, check the product title, specifications, dimensions, and manufacturer part number before ordering.
  • Use the linked product examples to move from this category page into specific product pages with more detailed information.

Common applications

  • Commercial and industrial maintenance
  • Contractor jobsite purchasing
  • Facility repair and replacement work
  • Shop, warehouse, and service-team replenishment

Product examples

These internal links point to canonical product pages, helping customers and search engines move from this collection hub into relevant product detail pages.

Frequently asked questions

How do I compare porting tools & counterbores products?

Compare the application, size, material, rating, compatibility, manufacturer part number, and package quantity. For fitted or replacement parts, verify dimensions and specifications before ordering.

Why is this porting tools & counterbores collection useful?

A clear collection page helps buyers understand the category, find related product groups, and reach individual product pages faster. It also gives search engines better context for crawling and indexing related products.

Porting Tools & Counterbores collection image

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