Irwin Rotary Percussion - Straight Shank 5/8" x 8" x 12" Spade Bit Set thick metal 3/16" to 1/2"

thick metal 3/16" to 1/2"

Parabolic flute design for improved heat dissipation and increased life

or create an interesting detail on built-up molding

these iconic pegs will reliably penetrate the hardest ground

Higher level of protection from side impacts

Irwin Rotary Percussion - Straight Shank 5/8" x 8" x 12" Spade Bit Set thick metal 3/16" to 1/2"Rotary 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