TGGJ TG TianGong 4241 HSS Spiral Flute Step Drill Bit

These TGGJ TG TianGong Spiral Flute Step Drill Bits are engineered for precise and efficient multi-diameter drilling and hole expansion. Constructed from durable 4241 High-Speed Steel (HSS), they feature a unique spiral flute design for superior chip evacuation and smoother, faster cuts. Ideal for a wide range of materials including metal, cast iron, and various sheet materials, offering versatility for professional and DIY projects.

Applicable materials: Metal