Syntec 3/4" GCB19BK Pro Diamond Wet Core Drill Bit for Concrete Grade B7 Threaded Rod the screw features a 6-lobe

the screw features a 6-lobe star drive that reduces cam-out and extends driver bit life

Its corrosion-resistant galvanized coating helps protect against rust and wear

Self-Starting Point – Allows for easy penetration and reduced risk of wood splitting

and no secondary setting step required

See Installation Sequence below for skews greater than 22 1/2°

Syntec 3/4" GCB19BK Pro Diamond Wet Core Drill Bit for Concrete Grade B7 Threaded Rod the screw features a 6-lobeSyntec 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