The "R" designation in the model number indicates it is intended for rough cut lumber only and is not interchangeable with bases designed for standard dimensional lumber
this heavy-duty hammer drill bit combines Diablo's proprietary Dura-Carbide technology with an impact-resistant 4-cutter full-carbide head
Profile R=19/32 inch and R=25/32 inch large roundover/cove
Posts exposed to weather or water splash
What makes Dura-Carbide different from standard carbide tips
Diablo 1-1/2" x 16" x 21" Rebar Demon SDS-Max 4-Cutter Carbide-Tipped Hammer Drill Bit Retrofit Post Bases The "R" designation in theThe Diablo 1 1 2" x 16" x 21" Rebar Demon SDS Max 4 Cutter Carbide Tipped Hammer Drill Bit is engineered for professionals who demand maximum durability, speed, and precision when drilling through reinforced concrete, standard concrete, brick, and block. Manufactured in Germany, this heavy duty SDS Max drill bit features a full carbide 4 cutter head and Diablo's proprietary Dura Carbide technology, delivering up to 7x longer life than standard 2
