Amana tool 51520 Solid Carbide Aluminum Flush Trim Down-Cut 1/4 D x 1-1/4 Cut Length x 1/4 SHK x 3-5/16 Inch Long Router Bit

Aluminum Cutting, Solid Carbide Flush Trim Router Bits 2 Flute with ball bearing guide Industrial quality Features a special grade carbide to perform quality cuts in aluminum These flush trim router bits are designed to eject chips either up and down (check table for specifications) providing clean cuts in aluminum and Aluminum Composite Materials (ACM). Perfect for routing aluminum using a template. Can be used for flush trimming materials such as: ALPOLIC Copper Composite Material (CCM) Alucobond Alupanel Dibond MDF Titanium Composite Material (TCM) Wood Benefits of ZrN Coating Items #51420-Z, #51520-Z, #51422-Z, and #51522-Z have ZrN coating Zirconium Nitride (ZrN) coating creates a harder and tougher cutting ceramic over carbide edge, allowing for a prolonged cutting edge life and helps to prevent the build-up/galling of material in the flutes while cutting. ZrN coated bits have the ability to run and/or be spun much faster than an uncoated tools. High flute volume supports high feed rates and chip loads High aspect ratio for single pass deep-reach cutting Creates incredibly precise detail work Mirror finish polished flute, up-spiral cutting edge for superior chip ejection Flute geometry optimized for cutting sign foam, sign board, hardwoods, thermoplastics and phenolic composites 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