Designed for use with impact drivers and standard drills, this Diablo step drill bit covers 17 hole sizes from 7/8" to 1-1/8". The split point tip eliminates the need for pre-drilling, while automated precision CNC grinding ensures strict angle tolerances on each step for clean, accurate holes in metal up to 1/8" thick.

• 17 steps covering 7/8" to 1-1/8" range
• Split point tip (132 deg) - no pre-drilling needed
• 1/4" hex shank fits all drills and impact drivers
• Optimized dual flute design for jam-free cuts
• Increased step heights for easier drilling
• Laser-marked steps for easy size identification
• For metal up to 1/8" thickness
• CNC ground for precise angle tolerances