Grand DA-21BL Pro

Milwaukee Shockwave Impact Duty #8 1/2 - 1 in. Step Bits are engineered to deliver the most durable and fastest impact step bit hole drilling solution. Our step drill bits are made with global materia more→ls and give you best-in-class performance in impact drivers with the versatility to be used in drills. The 1/4 in. hex shank has an optimized Shockzone body providing you with the industry’s most durable shank. A Titanium Aluminum Nitride (TiAlN) coating helps deliver 5x longer life, while the Rapid Strike tip and dual spiral flute produces 2x faster holes

Diablo's new step drill bits bring exclusive technology to the electrician, plumber and HVAC contractor with fast, accurate cuts and increased stability in thin metals, PVC other plastic materials. Th more→e innovative Split Point Tip design enables a fast, on-point start resulting in increased durability and up to 6X longer life. An automated precision grinding process on each step reduces wear and delivers 2X faster cuts. Multiple hole sizes are made easy with laser etched step markings while increased step heights for common hole sizes makes drilling holes more efficient and faster. Designed with a 1/4 inch hex shank, these bits are impact ready and can be used with drills and impact drivers.

The Milwaukee 2 piece Shockwave ECX Impact Bit Kit is engineered to offer you the most durable, best fitting driver bits on the market. The Wear Guard Tip delivers increased wear resistance which prot more→ects the impact bits fit over the life of the bit. The Shock Zone is optimized for each tip type and length of driver bit in the set to absorb peak torque and prevent breaking. The driver bits are made from Custom Alloy76 steel and a proprietary heat treatment process to extend bit life, providing up to 50X life versus other impact driver bits on the market. The Milwaukee Shockwave Impact Duty driver bits are built to provide users with extreme durability for the most demanding applications.