Syntec 5-1/2" GCB139BK Pro Diamond Wet Core Drill Bit for Concrete PSLV3 Powder Actuated Threaded Studs No pre-drilling required for steel

No pre-drilling required for steel up to 43 mil (18 ga

Simpson Strong-Tie Fiber-Cement Screws make it easy to install fiber-cement siding on your home projects

Flexible design: #1 Roofjack size fits pipe sizes from 1/4" - 2-3/4"

fill all triangle holes

reduce fastener slip

Syntec 5-1/2" GCB139BK Pro Diamond Wet Core Drill Bit for Concrete PSLV3 Powder Actuated Threaded Studs No pre-drilling required for steelSyntec has been working hard for over two decades to manufacture exceptional power core bits for the construction industry. Syntec's diamond drilling tools can be used for a wide range of applications whether it is light or heavy duty drilling. The GCBBK Pro core bits are an ideal option for drilling into medium to hard concrete with medium steel reinforcements. Syntec's drill core bits feature diamond tipped segments and fittings comprised of sturdy