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 12
- Approved Vendor 1/4" Long Lag Shield Anchor Die Cast Zinc Alloy SKU 16090 $1.25
- Approved Vendor 1/4" NPS HSS Straight Pipe Tap SKU 16093 $20.14
- Approved Vendor 1/4" NPT 1-1/2" OD HSS Round Adjustable Pipe Die SKU 16094 $32.02
- Approved Vendor 1/4" NPT Carbon Steel Pipe Tap SKU 16095 $5.77
- Approved Vendor 1/4" NPT HSS Pipe Tap, Qualtech SKU 16096 $18.35
- 1/4" NPT HSS Pipe Tap, Tap America SKU 16097 $30.24
- Approved Vendor 1/4" NPT Interrupted Thread HSS NPT Pipe Tap SKU 16098 $28.48
- Approved Vendor 1/4" X 2" Carbon Steel Square NPT Pipe Die SKU 16159 $64.57
- Approved Vendor 1/4" X 2-1/2" Carbon Steel Square NPT Pipe Die SKU 16161 $78.23
- Approved Vendor 1/4"-16 UNS X 1" OD HSS Round Adjustable Die SKU 16243 $33.01
- Approved Vendor 1/4"-18 NPS 1-1/2" OD HSS Round Adjustable Pipe Die SKU 16247 $34.72
- Approved Vendor 1/4"-18 NPT Carbon Steel Hex Pipe Die SKU 16248 $13.57
- Milwaukee 1/4"-18 Straight Flute Plug Tap & 7/16"DRILL Bit SKU 495-49-57-5591 $17.95
- Approved Vendor 1/4"-18 UNS X 1" OD HSS Round Adjustable Die SKU 16249 $33.01
- Approved Vendor 1/4"-20 Carbon Steel Hex Rethreading Die SKU 16265 $9.02
- Approved Vendor 1/4"-20 Carbon Steel Square Bolt Die SKU 16267 $57.07
- Approved Vendor 1/4"-20 HSS Machine and Fraction Hand Bottoming Tap SKU 16311 $7.66
- Approved Vendor 1/4"-20 HSS Nut Tap SKU 16314 $46.06
- Milwaukee 1/4"-20 HSS Plug Tap and #7 HSS Drill Bit SKU 16315 $6.59
- Milwaukee 1/4"-20 NC 1-Inch Hex Threading Die SKU 495-49-57-5334 $9.25
- Approved Vendor 1/4"-20 STI Tap, High Speed Steel SKU 16332 $20.80
- Approved Vendor 1/4"-20 UNC Carbon Steel Bottoming Tap SKU 16334 $2.19
- Approved Vendor 1/4"-20 UNC Carbon Steel Hex Rethreading Die SKU 16335 $6.96
- Approved Vendor 1/4"-20 UNC Carbon Steel Left Hex Die SKU 16336 $12.35
- Approved Vendor 1/4"-20 UNC Combined Drill Tap and Countersink with 1/4" Quick Change Hex Shank SKU 16339 $7.92
- Approved Vendor 1/4"-20 UNC HSS 2 Flute Spiral Point Tap SKU 16340 $4.72
- 1/4"-20 UNC HSS 2 Flute Spiral Point Tap, Tap America SKU 16341 $6.86
- Approved Vendor 1/4"-20 UNC HSS Bottoming Tap SKU 16342 $4.05
- 1/4"-20 UNC HSS Bottoming Tap, Tap America SKU 16343 $5.91
- Approved Vendor 1/4"-20 UNC HSS Left 4 Flute Bottoming Tap SKU 16345 $6.68
- Approved Vendor 1/4"-20 UNC HSS Left 4 Flute Plug Tap SKU 16346 $6.68
- Approved Vendor 1/4"-20 UNC HSS Left 4 Flute Taper Tap SKU 16347 $6.68
- Approved Vendor 1/4"-20 UNC HSS Plug Tap SKU 16348 $4.05
- 1/4"-20 UNC HSS Plug Tap, Tap America SKU 16349 $5.91
- Approved Vendor 1/4"-20 UNC HSS Taper Tap SKU 16350 $4.05
- 1/4"-20 UNC HSS Taper Tap, Tap America SKU 16351 $5.91
- 1/4"-20 UNC Tin-Coated 2 Flute Spiral Point Tap, Tap America SKU 16352 $13.13
- Approved Vendor 1/4"-20 UNC X 1" OD HSS Left Round Adjustable Die SKU 16354 $30.27
- Approved Vendor 1/4"-20 UNC X 1" OD HSS Round Adjustable Die SKU 16355 $12.70
- Approved Vendor 1/4"-20 UNC X 1-1/2" OD HSS Left Round Adjustable Die SKU 16356 $47.18
- Approved Vendor 1/4"-20 UNC X 1-1/2" OD HSS Round Adjustable Die SKU 16357 $20.46
- Approved Vendor 1/4"-20 UNC X 13/16" OD HSS Left Round Adjustable Die SKU 16358 $26.38
- Approved Vendor 1/4"-20 UNC X 13/16" OD HSS Round Adjustable Die SKU 16359 $10.36
- Approved Vendor 1/4"-20 UNC X 2" OD HSS Round Adjustable Die SKU 16360 $37.08
- Approved Vendor 1/4"-20 x 6" HSS Pulley Tap SKU 16362 $29.62
- Approved Vendor 1/4"-20 x 6" HSS Spiral Point Tap SKU 16363 $32.47
- Approved Vendor 1/4"-20 x 8" HSS Pulley Tap SKU 16368 $35.89
- Approved Vendor 1/4"-22 UNS X 1" OD HSS Round Adjustable Die SKU 16569 $33.01