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 44
- m4 x .7 HSS 4 Flute Taper Tap, Tap America SKU 31308 $10.02
- Approved Vendor m4 X .70 Carbon Steel Hex Die SKU 33249 $10.29
- Approved Vendor m4 x .75 HSS Plug Tap SKU 31404 $22.79
- Approved Vendor M4 x 0.7 HSS Plug Tap and 3.30mm HSS Drill Bit SKU 31019 $8.41
- Approved Vendor m4 X.5 1" OD HSS Round Adjustable Die Special SKU 30510 $40.73
- Approved Vendor m4 X.5 13/16" OD HSS Round Adjustable Die Special SKU 30500 $32.57
- Approved Vendor m4 X.75 1" OD HSS Round Adjustable Die Special SKU 30512 $40.73
- Approved Vendor m4 X.75 13/16" OD HSS Round Adjustable Die Special SKU 30501 $32.57
- Milwaukee M4-0.70 mm 1-Inch Hex Threading Die SKU 495-49-57-5319 $7.90
- Milwaukee M4-0.75 mm 1-Inch Hex Threading Die SKU 495-49-57-5320 $7.90
- Approved Vendor m4.5 x .5 HSS Plug Tap SKU 31394 $22.79
- Approved Vendor m4.5 X .75 Carbon Steel Hex Die SKU 33247 $10.29
- Approved Vendor m4.5 x .75 HSS 2 Flute Spiral Point Tap SKU 31350 $6.69
- Approved Vendor m4.5 x .75 HSS 4 Flute Bottoming Tap SKU 31195 $5.34
- Approved Vendor m4.5 x .75 HSS 4 Flute Plug Tap SKU 31161 $5.34
- Approved Vendor m4.5 x .75 HSS 4 Flute Taper Tap SKU 31183 $5.34
- Approved Vendor M4.5 x 0.75 HSS Plug Tap and 3.75mm HSS Drill Bit SKU 31026 $8.52
- Approved Vendor m40 X 1.5 3" OD HSS Round Adjustable Die Special SKU 30566 $241.24
- Approved Vendor m40 x 4 HSS Plug Tap SKU 31506 $329.95
- Approved Vendor m42 X 1.5 3" OD HSS Round Adjustable Die Special SKU 30579 $241.24
- Approved Vendor m42 x 1.5 HSS Plug Tap SKU 31523 $256.05
- Approved Vendor m42 X 3 3" OD HSS Round Adjustable Die Special SKU 30572 $241.24
- Approved Vendor m42 x 3 HSS Plug Tap SKU 31533 $351.66
- Approved Vendor m42 X 4.5 3" OD HSS Round Adjustable Die Special SKU 30573 $241.24
- Approved Vendor m45 X 1.5 3" OD HSS Round Adjustable Die Special SKU 30574 $241.24
- Approved Vendor m45 x 1.5 HSS Plug Tap SKU 31527 $256.05
- Approved Vendor m45 X 3 3" OD HSS Round Adjustable Die Special SKU 30577 $241.24
- Approved Vendor m45 x 4.5 HSS Plug Tap SKU 31524 $256.05
- Approved Vendor m46 X 4.5 3" OD HSS Round Adjustable Die Special SKU 30578 $241.24
- Approved Vendor m46 x 4.5 HSS Plug Tap SKU 31515 $399.59
- Approved Vendor m48 X 3 3" OD HSS Round Adjustable Die Special SKU 30576 $241.24
- Approved Vendor m48 x 5 HSS Plug Tap SKU 31528 $266.55
- Approved Vendor m48 X5 3" OD HSS Round Adjustable Die Special SKU 30575 $241.24
- Approved Vendor m5 x .5 HSS Plug Tap SKU 31402 $22.79
- Approved Vendor m5 x .7 HSS Plug Tap SKU 31390 $22.79
- Approved Vendor m5 x .75 HSS Plug Tap SKU 31412 $22.79
- Approved Vendor m5 x .8 HSS 2 Flute Spiral Point Tap SKU 31352 $6.69
- Approved Vendor m5 x .8 HSS 4 Flute Bottoming Tap SKU 31186 $5.34
- m5 x .8 HSS 4 Flute Bottoming Tap, Tap America SKU 31302 $10.02
- Approved Vendor m5 x .8 HSS 4 Flute Plug Tap SKU 31177 $5.34
- m5 x .8 HSS 4 Flute Plug Tap, Tap America SKU 31306 $10.02
- Approved Vendor m5 x .8 HSS 4 Flute Taper Tap SKU 31174 $5.34
- m5 x .8 HSS 4 Flute Taper Tap, Tap America SKU 31309 $10.02
- Approved Vendor m5 X .80 Carbon Steel Hex Die SKU 33250 $10.29
- Approved Vendor m5 x .9 HSS Plug Tap SKU 31393 $6.29
- Approved Vendor M5 x 0.8 HSS Plug Tap and 4.20mm HSS Drill Bit SKU 31027 $8.62
- Approved Vendor m5 x 1 HSS Plug Tap SKU 31396 $22.79
- Approved Vendor m5 X.75 13/16" OD HSS Round Adjustable Die Special SKU 30499 $32.57