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 40
- Approved Vendor m2.5 x .45 HSS 3 Flute Plug Tap SKU 31179 $7.79
- Approved Vendor m2.5 x .45 HSS 3 Flute Taper Tap SKU 31184 $7.79
- Approved Vendor m2.5 x .5 HSS Plug Tap SKU 31385 $23.73
- Approved Vendor m2.5 X.5 13/16" OD HSS Round Adjustable Die Special SKU 30507 $32.57
- Approved Vendor m2.6 x .35 HSS Plug Tap SKU 31378 $23.73
- Approved Vendor m2.6 x .45 HSS Plug Tap SKU 31391 $9.42
- Approved Vendor m2.6 X.45 13/16" OD HSS Round Adjustable Die Special SKU 30508 $32.57
- Approved Vendor m20 x .5 HSS Plug Tap SKU 31453 $66.34
- Approved Vendor m20 x .75 HSS Plug Tap SKU 31455 $66.34
- Approved Vendor m20 x 1 HSS Plug Tap SKU 31475 $50.60
- Approved Vendor m20 x 1.25 HSS Plug Tap SKU 31458 $66.34
- Approved Vendor m20 X 1.5 Carbon Steel Hex Die SKU 33266 $30.76
- Approved Vendor m20 x 1.5 HSS 3 Flute Spiral Point Tap SKU 31349 $48.29
- Approved Vendor m20 x 1.5 HSS 4 Flute Bottoming Tap SKU 31211 $45.58
- Approved Vendor m20 x 1.5 HSS 4 Flute Plug Tap SKU 31228 $45.58
- Approved Vendor m20 x 1.5 HSS 4 Flute Taper Tap SKU 31229 $45.58
- Approved Vendor M20 x 1.5 HSS Plug Tap and 18.50mm HSS Drill Bit SKU 31070 $97.44
- Approved Vendor m20 x 1.75 HSS Plug Tap SKU 31485 $66.34
- Approved Vendor m20 x 2 HSS Plug Tap SKU 31482 $50.60
- Approved Vendor m20 X 2.5 Carbon Steel Hex Die SKU 33264 $30.76
- Approved Vendor m20 x 2.5 HSS 3 Flute Spiral Point Tap SKU 31355 $48.29
- Approved Vendor m20 x 2.5 HSS 4 Flute Bottoming Tap SKU 31230 $45.58
- m20 x 2.5 HSS 4 Flute Bottoming Tap, Tap America SKU 31336 $80.93
- Approved Vendor m20 x 2.5 HSS 4 Flute Plug Tap SKU 31239 $45.58
- m20 x 2.5 HSS 4 Flute Plug Tap, Tap America SKU 31320 $80.93
- Approved Vendor m20 x 2.5 HSS 4 Flute Taper Tap SKU 31214 $45.58
- m20 x 2.5 HSS 4 Flute Taper Tap, Tap America SKU 31325 $80.93
- Approved Vendor M20 x 2.5 HSS Plug Tap and 17.50mm HSS Drill Bit SKU 31042 $94.00
- Approved Vendor m21 x 1 HSS Plug Tap SKU 31469 $69.18
- Approved Vendor m21 x 1.25 HSS Plug Tap SKU 31466 $69.18
- Approved Vendor m21 x 1.5 HSS Plug Tap SKU 31457 $69.18
- Approved Vendor m21 x 1.75 HSS Plug Tap SKU 31481 $69.18
- Approved Vendor m21 x 2 HSS Plug Tap SKU 31468 $69.18
- Approved Vendor m21 x 2.5 HSS Plug Tap SKU 31487 $69.18
- Approved Vendor m22 x .5 HSS Plug Tap SKU 31480 $77.71
- Approved Vendor m22 x .75 HSS Plug Tap SKU 31465 $77.71
- Approved Vendor m22 x 1 HSS Plug Tap SKU 31479 $77.71
- Approved Vendor m22 x 1.25 HSS Plug Tap SKU 31477 $77.71
- Approved Vendor m22 x 1.5 HSS 4 Flute Bottoming Tap SKU 31227 $46.74
- Approved Vendor m22 x 1.5 HSS 4 Flute Plug Tap SKU 31222 $46.74
- Approved Vendor m22 x 1.5 HSS 4 Flute Taper Tap SKU 31213 $46.74
- Approved Vendor m22 x 1.75 HSS Plug Tap SKU 31463 $77.71
- Approved Vendor m22 x 2 HSS Plug Tap SKU 31483 $77.71
- Approved Vendor m22 x 2.5 HSS 3 Flute Spiral Point Tap SKU 31347 $62.34
- Approved Vendor m22 x 2.5 HSS 4 Flute Bottoming Tap SKU 31231 $46.74
- Approved Vendor m22 x 2.5 HSS 4 Flute Plug Tap SKU 31235 $46.74
- Approved Vendor m22 x 2.5 HSS 4 Flute Taper Tap SKU 31233 $46.74
- Approved Vendor m23 x 1 HSS Plug Tap SKU 31474 $81.50