Diablo Saw Blade DS1209CGP3 12 Inch Reciprocating Blade Set (6 9 TPI Carbide Teeth Wood Nail Embedded Thick Metal Demolition Universal Shank 3 Pack) Boring Bit Standard 1 1 4" 7 UNC Thread Connection: Standard 1 1 4" 7 UNC Thread Connection: Universal female thread hub fits directly onto standard commercial core drilling rig spindles Engineered with 360 degree rotating anti marring hooks extending from 51 inches to 74 inches leverage the variable 6 9 TPI geometry patterns to establish a linear tracking angle and let the high density carbide tips clear the substrate at a constant pace TiCo High Density Carbide: Diablo formulated titanium cobalt carbide teeth provide extreme edge retention and an optimized 50X operational lifecycle versus standard bi metal bands