Milwaukee M12 2553-22 (2553-22)

The Milwaukee Thunderbolt 1" Silver & Deming drill bit is built for demanding work in stainless steel, cast iron, and materials spanning low to high tensile strength. Premium industrial-grade steel co more→nstruction gives the bit body the toughness needed for repeated use in harsh conditions, while heavy-duty cutting surfaces maintain their edge through deep and shallow holes alike. The full 1-inch cutting diameter pairs with a 1/2-inch reduced shank, making the bit compatible with standard jawed drill chucks and keeping larger hole sizes accessible without specialized equipment. Milwaukee engineered the Thunderbolt Silver & Deming line for fast, accurate hole-making in hard metals.

Irwin Rotary Drill Bits with Slow Spiral Flute is made with tungsten carbide tip for durability in concrete and brick. Rotary slow spiral masonry bit. Bits 7/16 in. and larger have reduced shanks. Nic more→kel plated for fast, smooth performance.

The Milwaukee 4-Piece SHOCKWAVE Red Helix Drill Bit Set is engineered for users who run impact drivers alongside standard drills. Milwaukee built the SHOCKWAVE platform to handle the repeated high-tor more→que cycling that impact drivers produce, a stress pattern that causes conventional bits to snap or strip prematurely. The RED HELIX variable geometry controls how material moves through the flutes, clearing chips efficiently while reducing the friction that shortens bit life. A titanium coating reinforces each cutting edge, extending usable lifespan well beyond that of uncoated bits. The four-piece assortment covers popular jobber-length sizes suited to a wide range of everyday drilling tasks.