Recip Blade 6 TPE Carbide Tipped. Specialty, Tapered, 6" x 3/4" x .05" (152 mm x 19 mm x 1.3 mm). Designed to cut through tough construction materials suchas cast iron pipe, masonry block, cement board and stainless steel.. Depending on the material, specialty blades feature carbide-tipped teeth, full carbide teeth, carbide grit or diamond grit for demanding construction materials. Recip Blade 6 TPE Carbide Tipped. Specialty, Tapered, 6" x 3/4" x .05" (152 mm x 19 mm x 1.3 mm). Designed to cut through tough construction materials suchas cast iron pipe, masonry block, cement board and stainless steel.. Depending on the material, specialty blades feature carbide-tipped teeth, full carbide teeth, carbide grit or diamond grit for demanding construction materials.