Check the listing for details. 13.3mm Lengthen 115mm Silver Tone Diamond Profile Straight Router Bit for Marble. Color: Silver, Condition: New. Listed at 24.88 USD. 13.3mm Dia Brazed Diamond Profile Wheel Router Bit Lengthen 115mm For Electric Router Specifications and shapes: Head Diameter :13.3mm Cutting width: 80mm Total Length : 115mm Shank Diameter : 12.7mm (close to 1/2"Shank ) Grit: 60 Coarse Coarse grit diamond, best on marble, granite and glass Suitable for use in grind the edge of glass, metal, woods, stone, marble, rock, gemstone, jewelry, shells, tile etc. For routing stone with wood router Use wet or dry. Water or other cooling agent is recommended for longer life of the bit. A new generation of tools, innovative Diamond BRAZED Profile Wheel Lasts up to double life longer than conventional diamond coated rotary points, saving time and money We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware. Should you have any queries, please contact me directly.