Drill bits made of high speed steel and taps made of carbon steel.

Set includes taps and drill bits for sizes 4-40NC, 6-32NC, 8-32NC, 10-24NC, 10-32NF, 1/4-20NC and T-handle tap wrench.

Includes drill bits of various sizes such as #43, #35, #29, #25, #21, #7.