Simpson SDS-Max Quad Head Drill Bit 1-3/4 in. x 23 in. Carbide MDMX17523Q Diamond Blade 1x Simpson Strong-Tie ECC77 End

1x Simpson Strong-Tie ECC77 End Column Cap

Hole Bottom: 7 in

Diameter: 5-3/8"

and the 24 TPI pitch is optimized for threading into metal substrates

Simpson SDS-Max Quad Head Drill Bit 1-3/4 in. x 23 in. Carbide MDMX17523Q Diamond Blade 1x Simpson Strong-Tie ECC77 EndKey Features Uniformly brazed carbide inserts resulting in longer bit life Self centering tips for accurate hole placement Chromium nickel molybdenum steel alloy body ensures hammering quality and extended service life Heat treatment procedures and shot peened finish increase surface hardness, drilling speed, reduce drill bit wear, and improve resistance to bending forces Drill bit conforms to ANSI Standard B212. 15 High volume, multi flute spiral