طقم مثاقب، 115 قطعة، طول آلة، HSS

I needed a set that covered both fractional and numbered bits, and this 115-piece set has everything from 1/16" up to No. 60. The straight shanks fit snugly into my drill chuck without any wobble.

Finally got this set to replace my mismatched collection, and having every size from 1/16 up to 1/2 inch by 64ths is incredibly convenient. The 115 pieces cover all the small precision holes I need for model work, and the HSS bits cut cleanly through steel without dulling quickly.

The range is incredible—having 1/16" up to 1/2" by 64ths plus the letter and number sizes means I finally stopped hunting for a missing bit mid-project. The straight shanks fit my chuck without any wobble, which is more than I can say for my old set.