Amana Tool 45771-Z 2-1/4" Solid Carbide Engraving Signmaking ZrN Coated Router Bit

Creates a harder and tougher cutting edge allows for a prolonged cutting edge life and helps to prevent the build-up of material in the flutes while cutting. Have the tendency to run/spin much faster than an uncoated tool. Optimized flute geometry and low Total Indicated Runout (TIR) guarantees clean cuts, essentially eliminates sanding and reduces chatter (where the machine or work piece vibrates) under high chip loads (when used with low TIR spindles). High flute volume supports high feed rates and chip loads. High aspect ratio for single pass deep-reach cutting. Flute geometry optimized for cutting sign foam, sign board, hardwoods, thermoplastics and phenolic composites.