Irwin Rotary Percussion - Straight Shank 5/8" x 8" x 12" Spade Bit Set Reduced area above the flute

Reduced area above the flute prevents the drill bit from binding while drilling-the full usable length can be utilized

designed for hand threading work in a variety of materials

general purpose

Blade storage that holds up to two additional blades

thick metal 3/16" to 1/2"

Irwin Rotary Percussion - Straight Shank 5/8" x 8" x 12" Spade Bit Set Reduced area above the fluteRotary Percussion Straight Shank Features: Fits all hammer drills with 3 jaw or Jacobs chuck Chrome vanadium shaft through hardened to 50 53HrC Patented flute geometry removes dust from the hole quicker for fast drilling and long life Up to 150% faster than other competitive bits Shot peened, double tempered finish reduces breakage Hot isostatically pressed to extend life and resist breakage Copper braze material gives high heat resistance for reduced