18 PCS HSS Combined Center Drills Bit Set Countersink 60 Degree Angle 5/3/2.5/2/1.5/1 mm

Accurate center hole drilling on material turning or as a drill bit for precise drilling. Dimensions 1mm / 1.5mm / 2.0mm / 2.5mm / 3.0mm / 5.0mm Inclination 60 Degree Material: HSS Color: silver How to use: 1. Traditionally make a conical hole for the center of the lathe with centering and biting drills to create a starting point for standard twist drills to prevent the twist drills from traveling. 2. For processing between the center of the workpiece or production center components. Package Contents: 18 * Center drill bit Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.