This 2-piece tap and die set is exactly what you need for 5/16-18 UNC threads—whether you're cutting new threads or cleaning up damaged ones.

The tap is made from high-speed steel 6542 (M2), so it's hard, tough, and holds an edge for a long time.

It's 2.74 inches total length with 0.88 inches of thread length, and the straight flute design pushes chips downward so they don't clog up the hole.

It's suitable for drilling machines, tapping machines, CNC, or even manual use.

The die is made from high-quality alloy steel with a 1-inch outer diameter and 0.35-inch thickness.

It has a conical lock hole that holds it tight in a die wrench or lathe mold base, and the chip removal holes let debris escape cleanly.

Both are right-hand thread, so standard threading direction.

Comes with one tap and one die, which is a perfect little kit for fixing stripped threads on machinery, equipment, or automotive parts.

Just remember to use cutting oil for longer tool life.

Thread size: 5/16-18 UNC with 18 threads per inch—common standard size.

Tap: high-speed steel 6542 (M2), 2.74" overall length, straight flute design.

Die: alloy steel, 1" OD, 0.35" thick, with conical lock hole.

Right-hand thread for standard clockwise threading.

Use with die wrench, lathe, drill press, or tapping machine.