Diablo DMARG1090 1/4" x 12" x 10" SPEEDemon™ Red Granite PLUS™ Carbide-Tipped Hammer Drill Bit ADV SALES choose Simpson Strong-Tie for your

choose Simpson Strong-Tie for your anchoring needs

designed to meet the highest standards of performance for metalworking and woodworking applications

Their T-handle hex keys are not just tools—they are an investment in reliability

Whether you’re a contractor

This flush trim bit is your go-to solution for:

Diablo DMARG1090 1/4" x 12" x 10" SPEEDemon™ Red Granite PLUS™ Carbide-Tipped Hammer Drill Bit ADV SALES choose Simpson Strong-Tie for yourMeet the Diablo DMARG1090 SPEEDemon Red Granite PLUS Carbide Tipped Hammer Drill Bit a purpose built solution for serious drilling on concrete, masonry, and stone. With a 1 4" diameter and a commanding 12" length, this bit is engineered to deliver faster starts, cleaner holes, and dramatically longer life under demanding work conditions. Up to 4x longer life thanks to a unique brazing and hardening process that keeps the carbide tip cooler under heavy