Key benefits Accurate hole starts: centers and guides your drill to prevent bit walk and reduce positioning errors. Versatile use: suitable for punching holes, tapping starts and countersinking on iron, wood and plastic. Durable performance: made from speed steel (HSS) for long service life and reduced need for frequent replacement. Readytouse kit: six center drill bits covering a range of sizes so you can swap out damaged or worn bits easily. What this product does Provides a precise pilot point to locate the exact drilling position and stabilize a twist drill for smoother, straighter holes. Creates an accurate center or chamfer on the end face of a shaft to aid turning, tapping or mounting operations. Acts as a countersink for screw heads and as a starting point for taps to improve thread alignment. Product features Material: speed steel (HSS) for toughness and wear resistance. Set: 6 pieces total, sizes range from 1.0 mm to 5.0 mm to cover common needs. Compatibility: Works on iron, wood and plastic materials; suitable as an accessory for shafts and general drilling tasks. Performance: Reduces drilling error and improves twist drill stability for cleaner, more reliable results. Typical applications / use scenarios Lathe setup: Use a center drill to make precise centers on shaft end faces before mounting on a lathe to ensure concentric turning. Drilling and tapping: Start holes accurately when preparing parts for tapping to ensure proper thread alignment. Woodworking and plastic fabrication: Establish accurate pilot points and countersinks for screws or fasteners in panels and housings. Notes and ordering tips The set includes six bits spanning 1.0–5.0 mm. Confirm the required diameter range for your projects and that the bit shank fits your tool before ordering. Suitable replacement set for worn or damaged center drill bits; select this kit to restore accurate hole starts and countersink capability.