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 41
- Approved Vendor m23 x 1.5 HSS Plug Tap SKU 31486 $81.50
- Approved Vendor m23 x 2 HSS Plug Tap SKU 31509 $81.50
- Approved Vendor m23 x 2.5 HSS Plug Tap SKU 31472 $81.50
- Approved Vendor m24 x 1 HSS Plug Tap SKU 31498 $83.39
- Approved Vendor m24 x 1.25 HSS Plug Tap SKU 31488 $83.39
- Approved Vendor m24 X 1.5 2-1/2" OD HSS Round Adjustable Die Special SKU 30543 $179.39
- Approved Vendor m24 x 1.5 HSS Plug Tap SKU 31490 $70.78
- Approved Vendor m24 x 2 HSS 4 Flute Bottoming Tap SKU 31268 $63.45
- Approved Vendor m24 x 2 HSS 4 Flute Plug Tap SKU 31270 $63.45
- Approved Vendor m24 x 2 HSS 4 Flute Taper Tap SKU 31238 $63.45
- Approved Vendor m24 x 2.5 HSS Plug Tap SKU 31500 $83.39
- Approved Vendor m24 x 3 HSS 4 Flute Bottoming Tap SKU 31278 $63.45
- m24 x 3 HSS 4 Flute Bottoming Tap, Tap America SKU 31339 $118.42
- Approved Vendor m24 x 3 HSS 4 Flute Plug Tap SKU 31292 $63.45
- m24 x 3 HSS 4 Flute Plug Tap, Tap America SKU 31337 $118.42
- Approved Vendor m24 x 3 HSS 4 Flute Taper Tap SKU 31271 $63.45
- m24 x 3 HSS 4 Flute Taper Tap, Tap America SKU 31331 $118.42
- Approved Vendor m25 x 1 HSS Plug Tap SKU 31512 $90.95
- Approved Vendor m25 x 1.25 HSS Plug Tap SKU 31495 $90.95
- Approved Vendor m25 x 1.5 HSS Plug Tap SKU 31484 $90.95
- Approved Vendor m25 x 3 HSS Plug Tap SKU 31491 $90.95
- Approved Vendor m26 X 1 2-1/2" OD HSS Round Adjustable Die Special SKU 30545 $179.39
- Approved Vendor m26 X 1.5 2-1/2" OD HSS Round Adjustable Die Special SKU 30544 $179.39
- Approved Vendor m26 x 1.5 HSS Plug Tap SKU 31492 $141.46
- Approved Vendor m26 x 2 HSS Plug Tap SKU 31532 $141.46
- Approved Vendor m26 x 2.5 HSS Plug Tap SKU 31522 $141.46
- Approved Vendor m26 x 3 HSS Plug Tap SKU 31496 $141.46
- Approved Vendor m27 x 1 HSS Plug Tap SKU 31503 $148.98
- Approved Vendor m27 x 1.25 HSS Plug Tap SKU 31513 $148.98
- Approved Vendor m27 x 1.5 HSS Plug Tap SKU 31505 $148.98
- Approved Vendor m27 x 2 HSS 4 Flute Bottoming Tap SKU 31267 $100.84
- Approved Vendor m27 x 2 HSS 4 Flute Plug Tap SKU 31284 $100.84
- Approved Vendor m27 x 2 HSS 4 Flute Taper Tap SKU 31269 $100.84
- Approved Vendor m27 X 2.5 2-1/2" OD HSS Round Adjustable Die Special SKU 30549 $179.39
- Approved Vendor m27 x 2.5 HSS Plug Tap SKU 31494 $148.98
- Approved Vendor m27 X 3 2-1/2" OD HSS Round Die SKU 30480 $93.73
- Approved Vendor m27 x 3 HSS 4 Flute Bottoming Tap SKU 31279 $100.84
- Approved Vendor m27 x 3 HSS 4 Flute Plug Tap SKU 31275 $100.84
- Approved Vendor m27 x 3 HSS 4 Flute Taper Tap SKU 31265 $100.84
- Approved Vendor m28 x 1 HSS Plug Tap SKU 31518 $183.68
- Approved Vendor m28 X 1.5 2-1/2" OD HSS Round Adjustable Die Special SKU 30552 $179.39
- Approved Vendor m28 x 1.5 HSS Plug Tap SKU 31516 $183.68
- Approved Vendor m28 X 2 2-1/2" OD HSS Round Adjustable Die Special SKU 30548 $179.39
- Approved Vendor m28 x 2 HSS Plug Tap SKU 31510 $183.68
- Approved Vendor m28 x 2.5 HSS Plug Tap SKU 31501 $183.68
- Approved Vendor m28 x 3 HSS Plug Tap SKU 31504 $183.68
- Approved Vendor m3 x .35 HSS Plug Tap SKU 31382 $23.73
- Approved Vendor m3 X .5 13/16" OD HSS Round Die SKU 30556 $17.00