8Pcs/Set Drill Bits Double-Groove Accurate Positioning Fast Chip-removal Round Shank Chamfering Sharp Tri-point Drills f

Item Name: Drill Bits Material: High Speed Steel Features: Fast Chip-removal, Round Shank Chamfering, High Hardness Size Details: 10mm: Length: 12cm/4.72", Diameter: 1cm/0.39" (Approx.) 9mm: Length: 12cm/4.72", Diameter: 0.9cm/0.35" (Approx.) 8mm: Length: 11.6cm/4.57", Diameter: 1cm/0.39" (Approx.) 7mm: Length: 10.9cm/4.29", Diameter: 0.7cm/0.28" (Approx.) 6mm: Length: 9.4cm/3.7", Diameter: 0.6cm/0.24" (Approx.) 5mm: Length: 8.5cm/3.35", Diameter: 0.5cm/0.2" (Approx.) 4mm: Length: 7.3cm/2.87", Diameter: 0.4cm/0.16" (Approx.) 3mm: Length: 6cm/2.36", Diameter: 0.3cm/0.12" (Approx.)