Screw rethreading tool

Taper Taps, sometimes called starting taps, have a more pronounced taper to their cutting edges than other taps. This gives taper taps a more gradual cutting action. Taper taps are most often used when the material to be tapped is difficult to work with or if the tap is of a very small diameter and prone to breakage.

Featuring a pitch chamfer length and starts the thread square with the workpiece. For taps to cut, they must be harder than the materials that they are cutting. This additional hardness also makes them brittle, meaning that they can be easily broken, a costly error that can be avoided.

It is important to use the proper T-handle for a tap rather than a standard wrench or locking pliers. Using a T-Handle keeps the force applied over the center of the tap or die, maintaining proper symmetry and tapping a straight and square hole.

The cutting teeth on a tap are not continuous all the way around the tap body. There are usually three or four cutting sections separated by a groove, called a flute, between them. Once the first full teeth begin cutting, the metal being removed may be a long strip, called a swarf, or chips. The flutes job is to provide clearance, so the chips can be kept clear of the cutting teeth and be pushed out of the top of the hole.

It is important that the cuttings be broken up to prevent jamming and breaking the tap. The best way to do this is to turn the tap in the direction of the cutting until you start to feel it bind.

At this point, turn the tap slowly in reverse until you hear, or feel a "click" of the chip breaking away from the material being cut. Remove the chip so the hole is clear and continue to advance the tap. The smaller the tap, the more important it is to break the chips away from the tap. Drilling the correct hole size is important because if the hole is too large the root of the threads will be shallow, and the screw may strip out or fail.

If the hole is too small, it will cause the tap to bind and possibly break trying to cut through too much material. Small taps are very easy to snap. It only takes approximately 4 pounds of human force to break a tap, proceed with caution when using small taps. Hex Rethreading Dies are used to restore bruised rounded or rusty threads on screws and bolts. Rethreading Dies are hexagonal in shape and may be turned with a wrench.

Hexagonal Rethreading Dies are the same size as their respective standard hex nut sizes. All Dies feature Thread Reliefs to provide easier cutting action and reduce friction by helping to remove shavings from the rethreading. The number of reliefs varies on the size of the Die. T Handles hold the end of a tap to provide extra leverage for hand tapping making them very useful for confined spaces or where extra reach or leverage is required.

T Handle Tap wrenches may also be used with screw extractors, drills, and other tools. T Handle Tap Wrenches use a collet to firmly grasp the tap. A collet is a set of segmented metal pieces that form a collar around the tap. The nose cap of the T Handle is tapered and threaded and tightens the collet as you screw the nose cap up the T handle. The handle itself on T handle wrenches is adjustable and can be switched to either side of the wrench.

High Speed Steels also known as HSS are high-performance special steels offering high hardness at temperatures up to degrees C and high wear resistance, thanks to alloying elements. As such high-speed steel does not lose its temper hardness with higher temperatures permitting it to cut faster than high carbon steel, thus the name.

High speed steel at room temperature typically displays high hardness above Rockwell hardness 60 and abrasion resistance compared to carbon, and other kinds of steel. High speed steel taper taps can be used in a T-handle or machine.

Sometimes problems can occur when tapping holes. These are often caused by the tapping machine if using one , tap holding devices, and the condition of the hole to be tapped. If using a tapping machine be sure to check for spindle, fixture, and work alignment for slipping belts, wear, and power. If using a tap holding device check to see if the correct type is used for wear and alignment with the hole. The hole itself should be checked for diameter and trueness in round and axis to assure correct percentage of thread engagement.

A smaller width than standard hex dies lets you repair threads in tight spaces. They're hex shaped for use with conventional wrenches. Repair rusted and damaged left-hand screw threads. With a smaller width than regular hex dies, these dies are suitable for repairing rusted and damaged left-hand threads in tight spaces.

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. Clean and restore the fine threads on power transmission shafts that are used with bearing locknuts. Clamp onto threaded rod, pipe, and conduit from the side to repair threads in tight spaces and where threaded ends are not exposed.

Slide over the end of threaded rod, pipe, and conduit to the area where threads are damaged, then tighten and rotate to repair threads. Restore any size screw, pipe, and conduit threads. Four or six files and four handles are included in these sets. Repair rusted and damaged threads on any diameter bolt, stud, or rod.

One file restores pipe and conduit threads in many sizes. Use these dies to create external threads on bolts, studs, and rods. Cut left -hand external threads on bolts, studs, and rods. Use these dies with Ridgid pipe and conduit threader die heads on Ridgid pipe and conduit threaders. Each set includes a ratchet with handle, die heads, and dies.

Use them to cut NPT threads in steel pipe and conduit by hand. Carry this pipe and conduit threader to your work site. Connect to a compatible ratchet or electric threader to cut external pipe and conduit threads.

Add or replace parts such as die sets, power drives, and die head adapters on Ridgid Pipe and Conduit Threaders. Cut threads in PVC with the specially designed teeth on these high-speed steel dies.

Grip compatible die heads to cut external pipe and conduit threads by hand. The teeth on these high-speed steel dies are designed to cut through stainless steel. These machines thread faster than the Ridgid and include a self-lubricating die head and automatic chuck.

Thread, cut, and ream pipe and conduit with these machines. Convert round dies to hex dies for use with a conventional wrench. Also known as die stocks, these wrenches grip round dies so you can turn them by hand.

Use these wrenches to turn hex-shaped dies by hand. They're also known as die stocks. One file restores a range of thread sizes in most hole diameters. Restore bolt, hole, pipe, and conduit threading with this set of four files. Repair rusted and damaged threads in pipe and conduit. These files are for use in most hole diameters. Attach these tools to a socket wrench to restore rusted and damaged spark plug threads in two common sizes.

With replaceable dies, these long-lasting tools can repair both screw threads and pipe and conduit threads. These tools have adjustable blades to repair any inch or metric thread size. Repair stripped threads on female connections, such as oil pans, valve covers, and distributor caps.

System of Measurement. Thread Size. Thread Type. Thread Pitch. For Use On. Thread Direction. Right Hand. Left Hand. File Sizes Included. Container Type. Number of Files. Number of Taps. Number of Pieces. Chamfer Type. Number of Dies. View catalog pages Send Cancel. How can we improve? Threading Sets. Repair screw threads in a wide range of sizes.

Tap and Die Sets. Tap, Die, and Drill Bit Sets. Tap and Die Wrench Sets. Tap Sets. These taps are for use on most metal and plastic. Thread Repairing Die Sets. Pipe and Conduit Tap Sets. Die Sets. Thread Repairing Dies. Thread Repairing Dies for Tight Spots. Two-Piece Thread Repairing Dies.

Left-Hand Thread Repairing Dies. Acme Thread Repairing Dies. Pipe and Conduit Thread Repairing Dies. Renew rusted and damaged pipe and conduit threads. External Screw Thread Repairing Files. Screw Thread Dies. Left-Hand Screw Thread Dies. Pipe and Conduit Thread Dies.