Ingco 7-Piece Hss Twist Drill Bit Set (AKD1075)

The INGCO AKD1075 is an industrial-grade 7-piece high-speed steel (HSS) twist drill bit set designed for high-precision boring through a variety of tough materials. Each bit is manufactured from HSS 4341 grade material, providing superior hardness and heat resistance that allows the cutting edges to remain sharp even under the high temperatures generated during metalworking. The bits feature a classic straight shank design, making them compatible with standard 10mm to 13mm keyed or keyless chucks found on most corded and cordless power drills. With a specialized "Black Golden" finish—a combination of black oxide and polished surfaces—the set is engineered to reduce friction and facilitate faster chip ejection for cleaner, burr-free holes in iron, steel, aluminum, and brass.

This versatile collection is optimized for a broad range of professional and DIY applications, performing effectively not only on metals and alloys but also on wood, PVC, and hard plastics. The 118° standard point angle provides reliable centering and stability, minimizing bit "walking" upon initial contact with the workpiece. For maximum efficiency, the set includes duplicate quantities of the most frequently used smaller diameters, ensuring project continuity even if one bit becomes worn. All seven pieces are securely organized within a durable, compact plastic storage case that protects the cutting edges from damage and allows for easy size identification and transport across different job sites.