IF THE BIT SNAPPED, PLEASE CONTACT FIRST, WE WILL SOLVE IT. </p> <p>Solid Carbide Spiral Router Bit with 1/4 inch Shank and 1/4 inch Cutting Diameter, 1 inch Cutting Length, 4 inch for Total Length;</p> <p>Flat Top with 3-Flute, Material: HRC55 Carbide with NO Coating; </p> <p> </p> <p>For Aluminum, Non-ferrous Mental, Plywood, OAK, MDF, and Any Hardwood Working and Long service life for sharp; </p> <p>The Route Bit Suit for CNC Router and Any Brand Plunge Router with 1/4" Collet; </p> <p> </p> <p>End Mill Bits are Suitable for Side Milling, End Milling, Finish Machining, etc. </p>