Simpson 13/16 in. x 21 in. SDS-Max Quad Head Carbide Drill Bit MDMX08121Q for Rotary Hammers CCTQM Column Cap "T" for GFCMU and Concrete Piers these bits enable the rebar

these bits enable the rebar to be removed so the hole can be drilled to the proper depth - a situation where a standard drill bit would not be appropriate

Manufacturer Part Number (MPN): CJT4ZS

Diameter 3/8"

making this screw especially well-suited for outdoor decking environments exposed to chlorides

The ZMAX galvanization combined with the black powder coat offers extra corrosion resistance specifically for exterior and treated-wood applications

Simpson 13/16 in. x 21 in. SDS-Max Quad Head Carbide Drill Bit MDMX08121Q for Rotary Hammers CCTQM Column Cap "T" for GFCMU and Concrete Piers these bits enable the rebarThe Simpson MDMX08121Q 13 16 in. x 21 in. SDS max Shank Quad Head Drill Bit by Simpson Strong Tie is a premium quality, professional grade carbide drill bit engineered for demanding rotary hammer drilling applications in concrete and reinforced concrete. Built with a proprietary quad head dual cutter design and high volume double helix flute geometry, this bit delivers exceptional drilling speed, superior durability, and reduced operator vibration