TCT Spiral Ceramic Tile Bit 1/4 Inch Hex Shank x 4-Cut x 6.0mm x 77mmL (Onca SCTB-060)
TCT Spiral Ceramic Tile Bit 1/4 Inch Hex Shank x 4-Cut x 4.0mm x 72mmL (Onca SCTB-040)