Irwin Rotary Percussion - Straight Shank 5/8" x 8" x 12" Size:5/8" x 8" x 12" The sweep and fins block

The sweep and fins block out drafts

including major brands such as Chamberlain(TM)

1 gallon covers approximately 300 sq

Bowl height: 17' high

rust-resistant flashing can be bent

Irwin Rotary Percussion - Straight Shank 5/8" x 8" x 12" Size:5/8" x 8" x 12" The sweep and fins blockRotary 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