CMT 223.684.12 Heavy Duty Solid Surface Blade 12" x 1" T84 MTCG LGT Light Girder Tiedown Head Geometry Crushes through Head Geometry Crushes through rebar and prevents the bit from sticking in reinforced concrete 2 3 8" Total Length) the extended reach allows you to rout deeper grooves and dadoes in a single pass that would require multiple setups or passes with a standard length bit and vinyl making it a versatile production tool across multiple material types Modified Triple Chip Grind (MTCG) Tooth Geometry the specialized MTCG grind alternates flat top and chamfered teeth to shear cleanly through solid surface