Utoolmart Center Drill Countersink Lathe Bit Mill Tool, Combined Drills Plain Type A 1mm x 4mm, Combined Countersinks Drills Set Tool, HSS-6542 Countersinks, 10 Pcs

• 【Dimension】- The shank diameter of this center drill is 4mm / 0.16-inch, the bit diameter is 1mm / 0.04-inch, the working edge length is 2mm / 0.08-inch, and the total length is 35mm / 1.38-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.

Utoolmart Center Drill Countersink Lathe Bit Mill Tool Product Feature * Sharp and durable, accurate positioning, cutting edge clear. * Each bit has a double end and grinding at a standard 60 degree angle. * Quick cutting speed, and good chip removal for precise center drilling in metals. * Used for all kinds of materials. can be applicable to metal, alloy, iron, steel, copper, aluminum and other processing. Usage 1. 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. 2. Used for producing center holds in components or work pieces with require machining between centers. Notes 1. Size for manual measurement, there may be a 1 to 3 mm error, belongs to the normal phenomenon. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Technical Parameters * Product Name: Center Drill Bit Set * Material: High Speed Steel ( HSS ) * Shank Diameter: 4mm / 0.16-inch * Bit Diameter: 1mm / 0.04-inch * Working Edge Length: 2mm / 0.08-inch * Total Length: 35mm / 1.38 * Color: Sliver Package Content * 10 x Center Drill Bits