HYPER-STEP HIGH-SPEED DRILL BIT SET, 21 PIECE DB21HSG | eBaydiy Tools

SUPERIOR DESIGN. Patented Hyper-Step design cuts 45% faster and are the best drill bits for sheet metal, steel and hardened metals like broken fasteners
ELIMINATES THE NEED FOR PILOT HOLES. Hyper-Step design in large sizes eliminates the need for up to two pilot holes that traditional drill bits require
LONG LASTING. Stays sharp up to 4X longer compared to conventional and other specialty tip designs
INNOVATIVE. The multi-stepped tip acts like a step drill, allowing for laser like holes through sheet metal and prevents walking on curved surfaces
ELIMINATES SLIPPAGE. Three-flatted shanks to reduce slippage common with keyless chucks
COMPREHENSIVE SET. Includes sizes 1/16\” through 3/8\” by 64ths Hyper-Step drill bits
Lifetime warranty on bits 17/64\” and larger