48-89-9301 4-12mm - 9 Hole Size Step Drill Bit Compatible with Milwaukee Cordless Drill Drivers, Cordless Impact Drivers

This 4–12mm step drill bit with 9 hole sizes is designed for precise drilling in thin metal, plastic, and composite materials. The dual-flute construction improves chip removal and reduces heat buildup for smoother, faster drilling. The sharp tip ensures fast starts without walking, while the black oxide coating enhances durability and wear resistance. A 1/4" hex shank offers a secure grip and compatibility with most impact drivers and drill chucks.🔩 Technical SpecificationsDrilling range: 4mm to 12mmNumber of steps: 9 (1mm increments)Shank type: 1/4" hexOverall length: approximately 65mmMaterial: High-speed steel (HSS)Coating: Black oxide finishApplications: Drilling in thin metal, plastic, and similar materials

• Smooth, jam-free drilling: Dual-flute design delivers fast cuts, minimizes friction, and prevents bit jamming in thin materials.
• Precision starts every time: Tip enables accurate starts with less heat and reduced bit walking.
• Easy-to-read laser markings: Laser-etched size indicators provide clear visibility and control over hole depth and diameter.
• Anti-slip hex shank: 1/4" three-flat shank stays securely locked in the chuck to reduce slipping during operation.
• Hole sizes: 4mm to 12mm | 9 steps with 1mm increments | 1/4" hex shank | Overall length: ~65mm | Material: High-speed steel with black oxide finish.