13Pcs HSS Twist Drill Bit Set Tools 1.5/2/2.5/3/3.2/3.5/4/4.5/4.8/5/5.5/6/6.5 mm
13Pcs HSS Twist Drill Bit Set Tools 1.5/2/2.5/3/3.2/3.5/4/4.5/4.8/5/5.5/6/6.5 mm. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks.