Irwin Rotary Percussion - Straight Shank 1/2" x 4" x 6" Size:1/2" x 4" x 6" SECURE BLADE GRIP: Interlocking nose

SECURE BLADE GRIP: Interlocking nose tightly holds knife edge in place

Stanley Fatmax

Length 2-9/16"

Use With Mandrel

3-11/16" twist length

Irwin Rotary Percussion - Straight Shank 1/2" x 4" x 6" Size:1/2" x 4" x 6" SECURE BLADE GRIP: Interlocking noseRotary 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