Thread-Cutting Dies | McMaster-Carr

Use with Ridgid Electric Pipe and Conduit Threaders and Ridgid Hand-Held Electric Pipe and Conduit Threaders to thread pipe and conduit sizes of 2-1/2, 3, 3-1/2, and 4.

Hand-Held Ridgid Electric Pipe and Conduit Threaders

Carry this pipe and conduit threader to your work site.

Ridgid 300 Electric Pipe and Conduit Threaders

Thread, cut, and ream pipe and conduit with these machines.

Ridgid 535A Electric Pipe and Conduit Threaders

These machines thread faster than the Ridgid 300 and include a self-lubricating die head and automatic chuck.

Replacement Parts and Accessories
for Ridgid Pipe and Conduit Threaders

Add or replace parts such as die sets, power drives, and die head adapters on Ridgid Pipe and Conduit Threaders.

Pipe and Conduit Thread Dies

Create external pipe and conduit threads.

Thread Repairing Dies

Restore rusted and damaged screw threads. These dies are hex shaped for use with conventional wrenches.

Thread Repairing Dies for Tight Spots

A smaller width than standard hex dies lets you repair threads in tight spaces.

Left-Hand Thread Repairing Dies for Tight Spots

With a smaller width than regular hex dies, these dies are suitable for repairing rusted and damaged left-hand threads in tight spaces.

Left-Hand Thread Repairing Dies

Repair rusted and damaged left-hand screw threads. These dies are hex shaped for use with conventional wrenches.

Two-Piece Thread Repairing Dies

Clamp these dies around your workpiece, so you can start thread repair anywhere along the length of a bolt, stud, or rod. They're hex shaped for use with conventional wrenches.

Bearing-Locknut Shaft Thread Repairing Dies

Clean and restore the fine threads on power transmission shafts that are used with bearing locknuts. Dies are sized according to the American Bearing Manufacturer's Association (ABMA).

Acme Thread Repairing Dies

Repair the broad, square threads on Acme threaded studs and rods. These dies are for general purpose Acme threads with a Class 2G thread fit.

Pipe and Conduit Thread Repairing Dies

Renew rusted and damaged pipe and conduit threads.

External Screw, Pipe, and Conduit Thread Repairing Tools

External Screw, Pipe, and
Conduit Thread Repairing Tools

Slide over the end of threaded rod, pipe, and conduit to the area where threads are damaged, then tighten and rotate to repair threads.

Side-Grip External Screw, Pipe, and
Conduit Thread Repairing Tools

Clamp onto threaded rod, pipe, and conduit from the side to repair threads in tight spaces and where threaded ends are not exposed.

External Thread Repairing Files

External Screw Thread Repairing Files

Repair rusted and damaged threads on any diameter bolt, stud, or rod.

External Screw, Pipe, and
Conduit Thread Repairing Files

Restore any size screw, pipe, and conduit threads.

External Screw, Pipe, and Conduit
Thread Repairing File Sets

Four or six files and four handles are included in these sets.

External Pipe and Conduit Thread Repairing Files

One file restores pipe and conduit threads in many sizes.

Die Holding

Wrenches for Round Dies

Also known as die stocks, these wrenches grip round dies so you can turn them by hand.

Wrenches for Hex Dies

Use these wrenches to turn hex-shaped dies by hand. They're also known as die stocks.

Round Die to Hex Die Adapters

Convert round dies to hex dies for use with a conventional wrench.

Threading Sets

Tap and Die Sets

Use a single set for many sizes of internal and external threads. All sets include tap and die wrenches.

Tap, Die, and Drill Bit Sets

Cut and repair threads and drill holes in many different sizes. Tap and die wrenches are included.

Thread Repairing Tap, Die, and File Sets

Repair screw threads in a wide range of sizes.

Tap and Die Wrench Sets

Switch from internal to external threading with interchangeable tap and die adapters. Use them with the included ratcheting wrench.

Die Sets

Cut several sizes of external screw threads.

Thread Repairing Die Sets

Repair rusted or damaged external threads in a variety of sizes.

Thread Repairing Die and File Sets for Tight Spots

Renew external threads in a wide range of sizes. The dies in these sets have a narrower width than standard dies, making them a good choice for thread repair in tight spots.