
DIN338 Roll Forged Black Finish HSS Twist Drill Bit. Customizable Specifications: Offers customized size (0.2-20mm), hardness, sharpening angle, and surface finish options. High Precision Material: Made from High Speed Steel (HSS) with hardness up to 64-67 HRC for durable performance. Versatile Application: Suitable for drilling steel, cast iron, malleable iron, and sintered metal with various point angles. Multiple Manufacturing Processes: Available in Rolled Forged, Fully Ground, Milled, and Edge Ground types to meet different needs. Wide Size Range: Standard sizes from 1mm to 30.0mm with split point options available from 3.0mm. Direct Manufacturer: 100% export direct manufacturer with 15 years of production experience and high customer satisfaction. Flexible Packaging: Customizable packing including PVC pouch, paper box, plastic tube, or metal box as per requirement. Fast Sample Delivery: Production time for samples is only 3-7 days, while batch goods take 2-3.5 weeks.