Cobalt Step Drill Set M35 Four Groove Spiral Flute 19 Step Size From One Quarter To One And Three Eighths Inch For Stainless Steel Wood Aluminum Plastic Pro Grade For DIYers

M35 Cobalt Four-Groove Step Drill Set, 19 Sizes 1/4-1-3/8 in
✔️ Four-groove M35 cobalt steel, TiAlN coating, 135° tip, faster drilling

This step drill set uses a four-groove design for stability and longer life, ideal for stainless steel, wood, aluminum, and plastic work. It's commonly used in home shops, metal fabrication, and DIY projects where clean, stepped holes are needed.

✅ Size range: 1/4 in to 1-3/8 in across 19 steps (6.35 mm to 34.93 mm)
✅ M35 cobalt HSS for high hardness and wear resistance
✅ TiAlN coating boosts heat resistance and reduces wear
✅ Four-groove spiral flute design improves stability and cutting speed

💡 What is a step drill set used for in metalworking and DIY projects? This handy tool helps you create clean, stepped holes with a single bit.

- Drills through stainless steel, aluminum, wood, and plastic with controlled steps - Helps achieve precise hole sizes across multiple diameters in one operation - Saves time in fabrication and reduces tool changes for handy projects