Drill Bit and Tap Set Number of Pieces 18 Tap Type Hand Tap Drill Bit Material High Speed Steel Drill Bit Finish Bright (Uncoated) Drill Bit Dia Included 10.20mm 2.05mm 2.50mm 2.90mm 3.30mm 4.20mm 5.00mm 6.70mm 8.5mm Measurement System Metric Impact Rated No Smallest Drill Bit Dia 2.05mm