Syntec 4-1/4" GCB107BK Pro Diamond Wet Core Drill Bit for Concrete Zinc Large Diameter Concrete Screws The T-25 star drive helps

The T-25 star drive helps prevent your bit from slipping and ensures better torque transfer

22 single “A” crimp loads

Spacer bracers are fed through the stud knockout at a 90° angle until studs align with spacer-bracer slots

Installing furring strips or other panel systems to light-gauge steel framing

Syntec 4-1/4" GCB107BK Pro Diamond Wet Core Drill Bit for Concrete Zinc Large Diameter Concrete Screws The T-25 star drive helpsSyntec 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