Bosi 13pcs Straight Shank Twist Drill Bits Set Bs532213

Description : BOSI 13pcs Straight Shank Twist Drill Bits Set BS532213 Brand : BOSI Material : HSS Steel Model : BS532213 Configuration : 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm Feature: This Twist Drill Bits is made of HSS 6542, Through special process, Overall heat treatment, Hardness reach HRC65-55 degrees, Service life of ordinary rolling twice as many black diamonds, Positioning accuracy, fast cutting. Package included : 1 x BOSI BS532213 Twist Drill Bits Set Detailed pictures :