Busch Twist Drill Bits 6Pcs (Sizes 005 to 016)

6 Busch Twist Drill Bits Great for Metalsmiths, Metal Working & Drilling. This is a new set of 6 twist drill bits. Long time jewelers favorite. Made in Germany with a reputation for quality. These have an Iso of 012. Each shank measures 3/32" (2.3 mm). Each bit is a size 2 and measures approximately 1.2 mm in diameter.