One set for threading, rethreading, and repairing bolts and fittings across metric, SAE, and NPT standards. Whether you're cutting fresh threads in aluminum or chasing damaged ones in cast iron, this 76-piece kit has the tap, the die, and the wrench to get it done.

GCr15 Bearing Steel Construction The same high-carbon steel used in precision bearings — exceptional hardness, wear resistance, and service life. Black oxide coating reduces friction, holds cutting oil, and delivers smoother threads.

Complete Metric & SAE Coverage 34 taps and 34 matching dies spanning M3–M12 metric, #4-40 through 1/2"-20 UNC/UNF, and 1/8"-27 NPT. That's metric fine and coarse, SAE coarse and fine, and pipe threads — all in one case.

Everything You Need to Start Working Two T-handle tap wrenches (1/4" and 1/2"), two die handles (5/8" and 1"), one adjustable tap wrench, two screw pitch gauges, and a screwdriver. No separate purchases required.

What's Included

• 34 taps + 34 matching dies (Metric, UNC, UNF, NPT)
• 2× T-handle tap wrenches, 2× die handles, 1× adjustable tap wrench
• 2× Screw pitch gauges, 1× screwdriver
• Blow-molded carrying case