Yonico 36261-SC Low Helix Up Cut CNC Router Bit, 1/2 x 1-1/4 x 1/2 x 3" Industrial Quality Router Bits Cutting Diameter: 1/2" Cutting Length: 1-1/4" Shank Diameter: 1/2" Overall Length: 3" Premium Quality Carbide Industrial CNC Router Bit Satisfaction Guaranteed & Lifetime Warranty