Syntec 4-1/4" GCB107BK Pro Diamond Wet Core Drill Bit for Concrete Zinc Large Diameter Concrete Screws the LSC features a corrosion-resistant

the LSC features a corrosion-resistant galvanized finish suitable for pressure-treated lumber

22 single “A” crimp loads

The PROSDDM25K combo system includes-

including those involving treated lumber

Drive screw until washer head contacts the surface fully

Syntec 4-1/4" GCB107BK Pro Diamond Wet Core Drill Bit for Concrete Zinc Large Diameter Concrete Screws the LSC features a corrosion-resistantSyntec 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