• New aggresive split-point tip that lasts longer and starts faster than competition
• High speed tool steel - most durable steel available for cutting tools
• Double-tempered for superior tip life
• Double fluted and blended radius steps for smooth, accurate drilling
• 1/4" Quick change shank can be used in standard 3-jaw chuck, impact drivers and quick change drill chuck.

Includes: 
• (1) Ideal 35-521 1/8" - 1/2" Step Drill Bit 
• (1) Ideal 35-522 1/4" - 7/8" Step Drill Bit
• (1) Ideal 35-523 1/4" to 1-1/8" Step Drill Bit