Solid Carbide spiral router bit with 1/4inch shank and 1/4 inch cutting diameter, 1-1/4 inch cutting length, 3 inch for total length The CNC End Mill For Plywood, OAK, MDF, and any hardwood working and Long service life for sharp Spiral bits used for smoothly upcut groove and slots, Plunge Mortises, Cycles and dado with clean edge and bottom, better than straight bits The route bit suit for CNC router and Makita, Bosch, and any brand plunge router with 1/4” collet The CNC Bit with coating offer high heat resistance and wear resistance,Increase Longer service life