Extension Taps | McMaster-Carr

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521 Products

Internal Thread Cutting

Long-Reach General Purpose Taps

Use the extra-long shank to thread deep and hard-to-reach holes.

General Purpose Taps

Cut threads into most metal and plastic.

Left-Hand General Purpose Taps

Tap threads for left-hand threaded fasteners.

Economy Carbon Steel Taps

Often used for thread repair and occasional hand tapping, these carbon steel taps can thread holes in most metal and plastic, but they have a shorter tool life than standard taps.

Long-Reach Chip-Clearing Taps for Through Holes

Clear chips while tapping deep and hard-to-reach holes. These taps have an extra-long shank for extended reach.

Chip-Clearing Taps for Through Holes

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

Hex Shank Combination Drill
Bits/Taps for Drills and Screwdrivers

With a drill bit point to drive into the workpiece, these taps can drill and tap holes in a single step. A 1/4" hex shank connects them directly to tools such as drills and power screwdrivers.

Combination Drill Bit/Taps

Drill holes and cut threads without switching tools.

Taps for Hardened Steel and Iron

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

Taps for Steel and Stainless Steel

These taps are made of cobalt steel for higher strength and wear resistance than standard taps. Their flutes are designed to keep chips clear, so they don't need to be reversed to prevent buildup.

Long-Reach Pipe and Conduit Thread Taps

With an extra-long shank, these taps have extended reach for tapping deep and hard-to-reach areas in pipe and conduit.

Pipe and Conduit Thread Taps

Create threads sized for pipe and conduit.

Combination Drill Bit/Pipe and Conduit Thread Taps

Drill and thread holes for pipe and conduit without switching tools.

European Conduit Thread Taps

Cut threads in PG thread sizes commonly used for European conduit.

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.

Taps for Helical Inserts

Add threads to holes in preparation for installing helical inserts.

Compressed Gas Thread Taps

Also known as National Gas Outlet (NGO) taps, these tap threads in sizes used for compressed gas cylinders and valves.

Acme and Metric Trapezoidal Thread Taps

Form general purpose Acme threads.

Tap Sets

These taps are for use on most metal and plastic.

Left-Hand Tap Sets

For start-to-finish tapping of left-hand threads, these sets include one taper-, one plug-, and one bottoming-chamfer tap.

Internal Thread Cutting

Long-Reach General Purpose Taps

General Purpose Taps

Left-Hand General Purpose Taps

Economy Carbon Steel Taps

Long-Reach Chip-Clearing Taps for Through Holes

Chip-Clearing Taps for Through Holes

Hex Shank Combination DrillBits/Taps for Drills and Screwdrivers

Combination Drill Bit/Taps

Taps for Hardened Steel and Iron

Taps for Steel and Stainless Steel

Long-Reach Pipe and Conduit Thread Taps

Pipe and Conduit Thread Taps

Combination Drill Bit/Pipe and Conduit Thread Taps

European Conduit Thread Taps

Coil Thread Taps

Taps for Helical Inserts

Compressed Gas Thread Taps

Acme and Metric Trapezoidal Thread Taps

Tap Sets

Tap Sets

Left-Hand Tap Sets

Hex Shank Combination Drill
Bits/Taps for Drills and Screwdrivers