About This

• ‌Effortless Precision Drilling:‌ Engineered with four razor-sharp cutting blades, our step drill bit set delivers swift, vibration-free drilling performance. The advanced geometry slices through steel, aluminum, copper and other rigid materials with surgical precision - like a hot knife through butter
• Durable High-Speed Steel:‌ ‌Forged from premium high-speed steel (HSS), each bit achieves Rockwell 62-65 hardness for exceptional durability. This industrial-grade composition resists thermal fatigue while maintaining cutting efficiency even under extreme pressure and friction
• ‌5 Pcs Step Drill:‌ ‌The comprehensive set covers 90% of common metalworking applications with graduated diameters: 3/16"-1/2" (6 steps), 1/4"-3/4" (9 steps), 3/16"-7/8" (12 steps),1/8"-1/2" (13 steps), 3/16"-1-3/8" (19 steps)
• Easy to Identify & Organize: Laser-etched size markings on every metal step bit let you drill with precision without constantly checking measurements. The included storage case keeps all bits neatly organized and easy to take anywhere
• Widely Application: Our metal step drill bits are ideal for drilling into metal sheets, stainless steel, aluminum, copper, plastic, and other thin materials
• Quick-Change Design: Features a dual shank with both a 1/4" hex and a 3/8" round shank, enabling quick, easy step-bit changes. Ensures a secure hold without slipping for stable performance. Compatible with most handheld drills and drill presses

Overview

• Material : High Speed Steel (HSS)
• Shank Type : HEX
• Cutting Angle String : 118 Degrees
• Brand : Bestwork
• Tool Flute Type : Spiral