Taps & Dies

2,000+ products

Expected delivery: Wed, Nov 18

Taps cut internal threads and dies cut external threads. Maintenance techs use them to repair stripped holes and chase damaged threads, and machine shops use them in production. This section covers hand taps in taper, plug and bottoming styles, spiral point (gun) taps for through holes, spiral flute taps for blind holes, NPT pipe taps, thread-forming taps, round adjustable dies, hex rethreading dies, tap wrenches, die stocks and tap and die sets. Threads include UNC, UNF, metric and NPT.

What to check before you order

• Thread size and pitch. Confirm the exact size, for example 1/4"-20 or M6 x 1.0. Our thread sizes guide explains the callouts.
• Hole type. Spiral point taps push chips forward and suit through holes. Spiral flute taps pull chips out and suit blind holes.
• Tap drill. Drill the correct tap drill size first. Too small a hole is a common cause of broken taps.
• Material. HSS taps cover most work. Cobalt or coated taps help in stainless and tougher alloys. Always use tapping fluid in steel.
• Pipe threads. NPT taps are tapered, so tap depth controls the fit.

Common questions

What size drill do I need for a 1/4-20 tap?

A #7 drill is the common choice for about 75 percent thread engagement in a 1/4"-20 hole.

See drill bits, the Alfa Tool line, and all cutting tools.

Taps & Dies: page 22

• 3/4"-10 UNC HSS 3 Flute Spiral Point Tap, Tap America SKU 20989 $44.39
• Approved Vendor 3/4"-10 UNC HSS Bottoming Tap SKU 20990 $27.71
• 3/4"-10 UNC HSS Bottoming Tap, Tap America SKU 20991 $41.61
• Approved Vendor 3/4"-10 UNC HSS Left 4 Flute Bottoming Tap SKU 20993 $39.92
• Approved Vendor 3/4"-10 UNC HSS Left 4 Flute Plug Tap SKU 20994 $39.92
• Approved Vendor 3/4"-10 UNC HSS Left 4 Flute Taper Tap SKU 20995 $39.92
• Approved Vendor 3/4"-10 UNC HSS Plug Tap SKU 20996 $27.71
• 3/4"-10 UNC HSS Plug Tap, Tap America SKU 20997 $41.61
• Approved Vendor 3/4"-10 UNC HSS Taper Tap SKU 20998 $27.71
• 3/4"-10 UNC HSS Taper Tap, Tap America SKU 20999 $41.61
• 3/4"-10 UNC Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 21000 $71.71
• Approved Vendor 3/4"-10 UNC X 1-1/2" OD HSS Left Round Adjustable Die SKU 21002 $47.18
• Approved Vendor 3/4"-10 UNC X 1-1/2" OD HSS Round Adjustable Die SKU 21003 $20.46
• Approved Vendor 3/4"-10 UNC X 2" OD HSS Left Round Adjustable Die SKU 21004 $100.89
• Approved Vendor 3/4"-10 UNC X 2" OD HSS Round Adjustable Die SKU 21005 $37.08
• Approved Vendor 3/4"-10 x 6" HSS Pulley Tap SKU 21011 $60.12
• Approved Vendor 3/4"-10 x 8" HSS Pulley Tap SKU 21012 $73.17
• Approved Vendor 3/4"-16 HSS Machine and Fraction Hand Bottoming Tap SKU 21111 $53.94
• Approved Vendor 3/4"-16 HSS Machine and Fraction Hand Plug Tap SKU 21112 $53.94
• Approved Vendor 3/4"-16 HSS Machine and Fraction Hand Taper Tap SKU 21113 $53.94
• Approved Vendor 3/4"-16 HSS Plug Tap and 11/16" HSS 1/2" Shank Drill Bit SKU 21114 $50.45
• Milwaukee 3/4"-16 NF 1-7/16" Hex Threading Die SKU 495-49-57-5378 $16.91
• Approved Vendor 3/4"-16 STI Tap, High Speed Steel SKU 21117 $50.29
• Approved Vendor 3/4"-16 UNF Carbon Steel Hex Rethreading Die SKU 21119 $17.64
• Approved Vendor 3/4"-16 UNF Carbon Steel Left Hex Die SKU 21120 $29.49
• Approved Vendor 3/4"-16 UNF HSS 3 Flute Spiral Point Tap SKU 21123 $32.77
• 3/4"-16 UNF HSS 3 Flute Spiral Point Tap, Tap America SKU 21124 $44.39
• Approved Vendor 3/4"-16 UNF HSS Bottoming Tap SKU 21125 $27.71
• 3/4"-16 UNF HSS Bottoming Tap, Tap America SKU 21126 $41.61
• Approved Vendor 3/4"-16 UNF HSS Left 4 Flute Bottoming Tap SKU 21128 $39.92
• Approved Vendor 3/4"-16 UNF HSS Left 4 Flute Plug Tap SKU 21129 $39.92
• Approved Vendor 3/4"-16 UNF HSS Left 4 Flute Taper Tap SKU 21130 $39.92
• Approved Vendor 3/4"-16 UNF HSS Plug Tap SKU 21131 $27.71
• 3/4"-16 UNF HSS Plug Tap, Tap America SKU 21132 $41.61
• Approved Vendor 3/4"-16 UNF HSS Taper Tap SKU 21133 $27.71
• 3/4"-16 UNF HSS Taper Tap, Tap America SKU 21134 $41.61
• 3/4"-16 UNF Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 21135 $71.71
• Approved Vendor 3/4"-16 UNF X 1-1/2" OD HSS Left Round Adjustable Die SKU 21137 $47.18
• Approved Vendor 3/4"-16 UNF X 1-1/2" OD HSS Round Adjustable Die SKU 21138 $20.46
• Approved Vendor 3/4"-16 UNF X 2" OD HSS Left Round Adjustable Die SKU 21139 $100.89
• Approved Vendor 3/4"-16 UNF X 2" OD HSS Round Adjustable Die SKU 21140 $37.08
• Approved Vendor 3/4"-16 x 6" HSS Pulley Tap SKU 21143 $60.12
• Approved Vendor 3/4"-18 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 21149 $51.96
• Approved Vendor 3/4"-20 UNS Carbon Steel Hex Die SKU 21150 $43.38
• Approved Vendor 3/4"-20 UNS HSS Plug Tap SKU 21151 $36.14
• Approved Vendor 3/4"-20 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 21152 $51.96
• Approved Vendor 3/4"-24 UNS Carbon Steel Hex Die SKU 21153 $43.38
• Approved Vendor 3/4"-24 UNS HSS Plug Tap SKU 21154 $36.14

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