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 24
- Approved Vendor 3/8"-16 HSS Nut Tap SKU 22437 $61.52
- Milwaukee 3/8"-16 HSS Plug Tap and 5/16" HSS Drill Bit SKU 22438 $9.47
- Milwaukee 3/8"-16 NC 1-Inch Hex Threading Die SKU 495-49-57-5348 $9.25
- Approved Vendor 3/8"-16 STI Tap, High Speed Steel SKU 22452 $25.03
- Milwaukee 3/8"-16 Straight Flute Plug Tap& 5/16" Drill Bit SKU 495-49-57-5548 $13.96
- Approved Vendor 3/8"-16 UNC Carbon Steel Hex Rethreading Die SKU 22455 $8.01
- Approved Vendor 3/8"-16 UNC Carbon Steel Left Hex Die SKU 22456 $15.49
- Approved Vendor 3/8"-16 UNC HSS 3 Flute Spiral Point Tap SKU 22459 $6.07
- 3/8"-16 UNC HSS 3 Flute Spiral Point Tap, Tap America SKU 22460 $8.83
- Approved Vendor 3/8"-16 UNC HSS Bottoming Tap SKU 22461 $5.81
- 3/8"-16 UNC HSS Bottoming Tap, Tap America SKU 22462 $8.02
- Approved Vendor 3/8"-16 UNC HSS Left 4 Flute Bottoming Tap SKU 22464 $9.65
- Approved Vendor 3/8"-16 UNC HSS Left 4 Flute Plug Tap SKU 22465 $9.65
- Approved Vendor 3/8"-16 UNC HSS Left 4 Flute Taper Tap SKU 22466 $9.65
- Approved Vendor 3/8"-16 UNC HSS Plug Tap SKU 22467 $5.81
- 3/8"-16 UNC HSS Plug Tap, Tap America SKU 22468 $8.02
- Approved Vendor 3/8"-16 UNC HSS Taper Tap SKU 22469 $5.81
- 3/8"-16 UNC HSS Taper Tap, Tap America SKU 22470 $8.02
- 3/8"-16 UNC Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 22471 $18.75
- Approved Vendor 3/8"-16 UNC X 1" OD HSS Left Round Adjustable Die SKU 22473 $30.27
- Approved Vendor 3/8"-16 UNC X 1" OD HSS Round Adjustable Die SKU 22474 $12.70
- Approved Vendor 3/8"-16 UNC X 1-1/2" OD HSS Left Round Adjustable Die SKU 22475 $47.18
- Approved Vendor 3/8"-16 UNC X 1-1/2" OD HSS Round Adjustable Die SKU 22476 $20.46
- Approved Vendor 3/8"-16 UNC X 2" OD HSS Round Adjustable Die SKU 22477 $37.08
- Approved Vendor 3/8"-16 x 6" HSS Pulley Tap SKU 22481 $34.69
- Approved Vendor 3/8"-16 x 6" HSS Spiral Point Tap SKU 22482 $35.88
- Approved Vendor 3/8"-16 x 8" HSS Pulley Tap SKU 22483 $41.19
- Approved Vendor 3/8"-18 NPS 1-1/2" OD HSS Round Adjustable Pipe Die SKU 22628 $34.72
- Approved Vendor 3/8"-18 NPS 2" OD HSS Round Adjustable Pipe Die SKU 22629 $70.78
- Approved Vendor 3/8"-18 NPT Carbon Steel Hex Pipe Die SKU 22630 $20.09
- Approved Vendor 3/8"-18 UNS X 1" OD HSS Round Adjustable Die SKU 22631 $33.01
- Approved Vendor 3/8"-20 UNS Carbon Steel Hex Die SKU 22632 $37.00
- Approved Vendor 3/8"-20 UNS HSS Plug Tap SKU 22633 $20.10
- Approved Vendor 3/8"-20 UNS X 1" OD HSS Round Adjustable Die SKU 22634 $33.01
- Approved Vendor 3/8"-24 Carbon Steel Hex Rethreading Die SKU 22639 $10.38
- Approved Vendor 3/8"-24 HSS Machine and Fraction Hand Bottoming Tap SKU 22667 $10.39
- Approved Vendor 3/8"-24 HSS Machine and Fraction Hand Plug Tap SKU 22668 $10.39
- Approved Vendor 3/8"-24 HSS Machine and Fraction Hand Taper Tap SKU 22669 $10.39
- Approved Vendor 3/8"-24 HSS Nut Tap SKU 22670 $61.52
- Approved Vendor 3/8"-24 HSS Plug Tap and Q HSS Drill Bit SKU 22671 $10.68
- Milwaukee 3/8"-24 NF 1-Inch Hex Threading Die SKU 495-49-57-5351 $9.25
- Approved Vendor 3/8"-24 STI Tap, High Speed Steel SKU 22676 $23.50
- Approved Vendor 3/8"-24 UNF Carbon Steel Hex Rethreading Die SKU 22678 $8.01
- Approved Vendor 3/8"-24 UNF Carbon Steel Left Hex Die SKU 22679 $15.49
- Approved Vendor 3/8"-24 UNF HSS 3 Flute Spiral Point Tap SKU 22682 $6.07
- 3/8"-24 UNF HSS 3 Flute Spiral Point Tap, Tap America SKU 22683 $8.83
- Approved Vendor 3/8"-24 UNF HSS Bottoming Tap SKU 22684 $5.81
- 3/8"-24 UNF HSS Bottoming Tap, Tap America SKU 22685 $8.02