VSILE Drill Bits Set7-Pieces Drill Bits and Driver Set for Wood Metal Cement Drilling and Screw DrivingHigh Speed Steel Drill Bit Set with Hex Key for DIY RepairsInstalling Fixtures FittingsScrewing FasteningQuick Change

Specification: Material:high speed steel DiameterThe diameter of the chamfer is 15.8mm Size: 3mm (diameter) x 60mm (length) 4mm (diameter) x 75mm (length) 5mm (diameter) x 85mm (length) 6mm (diameter) x 93mm (length) 7mm (diameter) x 100mm (length) 8mm (diameter) x 110mm (length) 10mm (diameter) x 120mm (length) Feature: 1.For steel,aluminum,plastic and wood.Just loosen and tighten the screws,you can adjust the drilling length for different situations. 2.Fast chip removal in the bit path,large chip flutes and five chamfers can discharge sawdust faster and easier. 3.The drill bit is heat-treated and quenched and tempered carbon steel,with titanium nitrate coating,with excellent cutting ability,suitable for market hand drills. Package Includes: 7 x drill bits 1 x L wrench