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 39
- Approved Vendor m17 x 1.5 HSS Plug Tap SKU 31459 $46.43
- Approved Vendor m17 x 1.75 HSS Plug Tap SKU 31452 $46.43
- Approved Vendor m17 x 2 HSS Plug Tap SKU 31462 $46.43
- Approved Vendor m18 x .5 HSS Plug Tap SKU 31476 $52.13
- Approved Vendor m18 x .75 HSS Plug Tap SKU 31447 $52.13
- Approved Vendor m18 x 1 HSS Plug Tap SKU 31443 $37.24
- Approved Vendor m18 x 1.25 HSS Plug Tap SKU 31473 $52.13
- Approved Vendor m18 X 1.5 Carbon Steel Hex Die SKU 33263 $24.26
- Approved Vendor m18 x 1.5 HSS 3 Flute Spiral Point Tap SKU 31359 $39.22
- Approved Vendor m18 x 1.5 HSS 4 Flute Bottoming Tap SKU 31234 $33.58
- Approved Vendor m18 x 1.5 HSS 4 Flute Plug Tap SKU 31218 $33.58
- Approved Vendor m18 x 1.5 HSS 4 Flute Taper Tap SKU 31241 $33.58
- Approved Vendor M18 x 1.5 HSS Plug Tap and 16.50mm HSS Drill Bit SKU 31069 $76.82
- Approved Vendor m18 x 1.75 HSS Plug Tap SKU 31478 $52.13
- Approved Vendor m18 x 2 HSS Plug Tap SKU 31471 $37.24
- Approved Vendor m18 X 2.5 Carbon Steel Hex Die SKU 33268 $24.26
- Approved Vendor m18 x 2.5 HSS 3 Flute Spiral Point Tap SKU 31367 $39.22
- Approved Vendor m18 x 2.5 HSS 4 Flute Bottoming Tap SKU 31236 $33.58
- m18 x 2.5 HSS 4 Flute Bottoming Tap, Tap America SKU 31327 $62.55
- Approved Vendor m18 x 2.5 HSS 4 Flute Plug Tap SKU 31225 $33.58
- m18 x 2.5 HSS 4 Flute Plug Tap, Tap America SKU 31317 $62.55
- Approved Vendor m18 x 2.5 HSS 4 Flute Taper Tap SKU 31202 $33.58
- m18 x 2.5 HSS 4 Flute Taper Tap, Tap America SKU 31318 $62.55
- Approved Vendor M18 x 2.5 HSS Plug Tap and 15.50mm HSS Drill Bit SKU 31041 $74.86
- Approved Vendor m19 x 1 HSS Plug Tap SKU 31464 $55.92
- Approved Vendor m19 x 1.5 HSS Plug Tap SKU 31454 $55.92
- Approved Vendor m19 x 1.75 HSS Plug Tap SKU 31489 $55.92
- Approved Vendor m19 x 2.5 HSS Plug Tap SKU 31451 $55.92
- Approved Vendor m2 x .2 HSS Plug Tap SKU 31395 $26.98
- Approved Vendor m2 x .25 HSS Plug Tap SKU 31399 $26.98
- Approved Vendor m2 X .4 13/16" OD HSS Round Die SKU 30539 $17.00
- Approved Vendor m2 x .4 HSS 2 Flute Spiral Point Tap SKU 31338 $12.85
- Approved Vendor m2 x .4 HSS 3 Flute Bottoming Tap SKU 31154 $12.65
- Approved Vendor m2 x .4 HSS 3 Flute Plug Tap SKU 31166 $12.65
- Approved Vendor m2 x .4 HSS 3 Flute Taper Tap SKU 31158 $12.65
- Approved Vendor m2 x .45 HSS Plug Tap SKU 31379 $14.03
- Approved Vendor m2 X.25 13/16" OD HSS Round Adjustable Die Special SKU 30494 $32.57
- Approved Vendor m2.2 X .45 13/16" OD HSS Round Die SKU 30547 $17.00
- Approved Vendor m2.2 x .45 HSS 2 Flute Spiral Point Tap SKU 31341 $11.68
- Approved Vendor m2.2 x .45 HSS 3 Flute Bottoming Tap SKU 31164 $7.79
- Approved Vendor m2.2 x .45 HSS 3 Flute Plug Tap SKU 31160 $7.79
- Approved Vendor m2.3 x .4 HSS Plug Tap SKU 31397 $9.42
- Approved Vendor m2.3 X.4 13/16" OD HSS Round Adjustable Die Special SKU 30498 $32.57
- Approved Vendor M2.5 x .045 HSS Plug Tap and 2.05mm HSS Drill Bit SKU 31016 $11.45
- Approved Vendor m2.5 X .45 13/16" OD HSS Round Die SKU 30540 $17.00
- Approved Vendor m2.5 X .45 Carbon Steel Hex Die SKU 33254 $11.05
- Approved Vendor m2.5 x .45 HSS 2 Flute Spiral Point Tap SKU 31343 $9.75
- Approved Vendor m2.5 x .45 HSS 3 Flute Bottoming Tap SKU 31172 $7.79