Taps for Hardened Steel | McMaster-Carr

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167 Products

Internal Thread Cutting

Carbide Taps

Use these taps on hard and abrasive material, such as heat-treated metal, nickel, and fiberglass.

Taps for Hardened Steel and Iron

Tap threads into hardened steel and iron. These cobalt steel taps have straight flutes for high durability.

Pipe and Conduit Thread Taps for Hardened Steel

Use these taps on hardened steel pipe and conduit.

Thread Mills

Cut a range of thread sizes with a single tool. These thread mills can also produce both right-hand and left-hand threads.

Coil Thread Taps

The coil-style threads produced by these taps are shallower and more widely spaced than standard thread sizes. Use them for quick threading action with compatible fasteners.

Internal Thread Repairing

Internal Thread Repairing File Sets

Restore bolt, hole, pipe, and conduit threading with this set of four files.

Internal Thread Repairing Files

One file restores a range of thread sizes in most hole diameters.

Internal Pipe and Conduit Thread Repairing Files

Repair rusted and damaged threads in pipe and conduit. These files are for use in most hole diameters.

Any-Pitch Internal Thread Repairing Tools

These tools have adjustable blades to repair any inch or metric thread size. Use them on threaded holes with an ID from 5/16" to 1-1/4" or 8 mm to 32 mm.

Internal Threading Sets

Chip-Clearing Tap Sets for Through-Holes

Sets include multiple tap sizes for threading different hole diameters.

Chip-Clearing Tap and Drill
Bit Sets for Through-Holes

Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes.