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 6

• Alfa Tool 0-80 HSS Alfa Usa Hand Tap-Bottoming SKU HTB170000 $13.20
• Alfa Tool 0-80 HSS Eco Pro Hand Tap-Bottoming SKU HTB270000 $10.94
• Alfa Tool 0-80 HSS Usa Spiral Pointed Tap SKU SPT170100 $15.76
• Alfa Tool 1 1/2 HSS Spiral Flute Pipe Reamer SKU HSPR70358 $179.06
• Alfa Tool 1 1/2-12 Carbon Steel Hand Tap Taper SKU CSHTT70561 $70.76
• Alfa Tool 1 1/2-6 Carbon Steel Hand Tap Taper SKU CSHTT70560 $72.36
• Alfa Tool 1 1/4-12 Carbon Steel Hand Tap Taper SKU CSHTT70557 $52.56
• Alfa Tool 1 1/4-7 Carbon Steel Hand Tap Taper SKU CSHTT70556 $52.56
• Alfa Tool 1 1/4-7 HSS Black Oxide Alfa Usa Hand Tap Set SKU HTS80055 $526.28
• Alfa Tool 1 3/4-5 HSS Special Thread Tap Bottoming SKU HTSPB71483 $310.56
• Alfa Tool 1 3/8-12 Carbon Steel Hand Tap Taper SKU CSHTT70559 $68.74
• Alfa Tool 1 3/8-6 Carbon Steel Hand Tap Taper SKU CSHTT70558 $56.60
• Alfa Tool 1 3/8-6 HSS Black Oxide Alfa Usa Hand Tap Set SKU HTS80057 $661.94
• DeWalt 1 Aluminum U-Die Set SKU 115-DCE31001AL $192.29
• DeWalt 1 Copper U-Die Set SKU 115-DCE31001CU $192.29
• Milwaukee 1" Alloy NPT PPT Forgedalum Die Head SKU 495-48-36-1309 $205.17
• Milwaukee 1" Hi-SPD NPT PPT Forgedalum Die Head SKU 495-48-36-1009 $295.31
• Milwaukee 1" X 1-5/8" Single Strutshearing Dies SKU 495-49-16-1158 $772.91
• Alfa Tool 1"-11 1/2 Installation Tool SKU TI66334 $59.42
• Alfa Tool 1-1/16-12 HSS Special Thread Tap Bottoming SKU HTSPB71412 $115.00
• Alfa Tool 1-1/16-14 HSS Special Thread Tap Bottoming SKU HTSPB71413 $94.26
• Alfa Tool 1-1/16-16 HSS Special Thread Tap Bottoming SKU HTSPB71414 $94.26
• Alfa Tool 1-1/16-18 HSS Special Thread Tap Bottoming SKU HTSPB71415 $94.26
• Alfa Tool 1-1/16-20 HSS Special Thread Tap Bottoming SKU HTSPB71416 $108.22
• Alfa Tool 1-1/16-24 HSS Special Thread Tap Bottoming SKU HTSPB71417 $108.22
• Alfa Tool 1-1/16-32 HSS Special Thread Tap Bottoming SKU HTSPB71418 $108.22
• Alfa Tool 1-1/16-8 HSS Special Thread Tap Bottoming SKU HTSPB71411 $115.00
• Alfa Tool 1-1/2 - 8 Carbon Steel Rethreading Hex Die SKU CSRTD70754 $58.38
• Ridgid 1-1/2 RH BSPT Dies Black Oxide SKU LS-00534485-2 $180.27
• Alfa Tool 1-1/2-11 Bright Standard Straight Pipe Tap SKU BSPP70459 $336.36
• Alfa Tool 1-1/2-12 HSS Alfa Usa Hand Tap-Bottoming SKU HTB170060 $252.88
• Alfa Tool 1-1/2-12 HSS Eco Pro Hand Tap-Taper SKU HTT270060 $175.70
• Alfa Tool 1-1/2-16 HSS Special Thread Tap Bottoming SKU HTSPB71464 $191.42
• Alfa Tool 1-1/2-18 HSS Special Thread Tap Bottoming SKU HTSPB71465 $191.42
• Alfa Tool 1-1/2-20 HSS Special Thread Tap Bottoming SKU HTSPB71466 $191.42
• Alfa Tool 1-1/2-6 HSS Eco Pro Hand Tap-Taper SKU HTT270059 $175.70
• Alfa Tool 1-1/2-8 HSS Special Thread Tap Bottoming SKU HTSPB71461 $229.22
• Milwaukee 1-1/4" Alloy NPT PPT Forged Alum Die Head SKU 495-48-36-1310 $205.17
• Milwaukee 1-1/4" Hi-SPD NPT PPT Forged Alum Die Head SKU 495-48-36-1010 $284.94
• Alfa Tool 1-1/4-11 Bright Standard Straight Pipe Tap SKU BSPP70458 $239.60
• Alfa Tool 1-1/4-12 HSS Eco Pro Hand Tap-Bottoming SKU HTB270056 $120.50
• Alfa Tool 1-1/4-12 HSS Eco Pro Hand Tap-Taper SKU HTT270056 $120.50
• Alfa Tool 1-1/4-14 HSS Special Thread Tap Bottoming SKU HTSPB71437 $132.50
• Alfa Tool 1-1/4-16 HSS Special Thread Tap Bottoming SKU HTSPB71438 $132.50
• Alfa Tool 1-1/4-18 HSS Special Thread Tap Bottoming SKU HTSPB71439 $132.50
• Alfa Tool 1-1/4-20 HSS Special Thread Tap Bottoming SKU HTSPB71440 $132.50
• Alfa Tool 1-1/4-32 HSS Special Thread Tap Bottoming SKU HTSPB71443 $132.50
• Alfa Tool 1-1/4-7 HSS Eco Pro Hand Tap-Bottoming SKU HTB270055 $120.50

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