12" DIA. 86 TCG 1 ARBOR .122 KERF .098 PLATE\r\nLU89M series blades for cutting nonferrous metal such as copper pipe, aluminum extrusions, brass plate, etc. These blades have custom designed gullets to minimize chip build-up and specially formulated MicroGrain carbide tips and Tri-Metal brazing for long life and clean cuts. Freud recommends ample use of a liquid lubricant when cutting. This can be accomplished with a squirt of WD-40 or other lubricant every 4 or 5 cuts or with an elaborate industrial drip system. Wax sticks are not recommended. - Thick MicroGrain carbide tips - Laser cut blade bodies and expansion slots - Kickback reducing design - Tri-metal brazing impact-resistant tips - Covered by Freud's Limited Lifetime Warranty