Description
Specification: This listing is for a set of 5 HSS Center Drills It includes 1 each of sizes #1, #2, #3, #4 and #5 Each drill has a double end and is ground with a standard 60 degree included angle The set includes 1 each of the following sizes: #1 with 4mm body diameter #2 with 3mm body diameter #3 with 2.5mm body diameter #4 with 2mm body diameter #5 with 1.5mm body diameterUsage: Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking Used for producing center holds in components or work pieces with require machining between centersPackage Included: 1 x One Set Center Drills Caution: When you use this drill bits, the material (eg. soft metal, mild steel, aluminum, acrylic plastic, and wood etc) temperature will get very high, please add some water or coolant to avoid the material get smoke when using it.