Utoolmart Combined Imperial Countersink Spotting Review

【Dimension】- The shank diameter of this center drill is 1/4-inch, the working edge length is 3mm / 0.12-inch, and the total length is 47mm / 1.85-inch. 【Material and Features】- High Speed Steel, high hardness, rustproof, solid, durable and excellent for use. 【Durable and Resistance】- Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with impact resistance, wear resistance. 【Convenience】- Easy to use and install, change bits fast which one-handed load and release. Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum and so on. 【Precisely Processing】- Center and spotting drills are 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.