- 【Dimension】- The shank diameter of this center drill is 12mm / 0.47-inch, the bit diameter is 5mm / 0.20-inch, the working edge length is 6mm / 0.24-inch, and the total length is 60mm / 2.36-inch.
- 【Material and Features】- High Speed Steel, high hardness, rustproof, solid, durable and excellent for use.
- 【Durable and Resistance】- Countersink 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.
