SPEED TIGER IAUE Carbide Square End Mill for Aluminum Applications - High Feed U-Type Design - for Roughing and Finishing - 3 Flute - IAUE3/8"3 - Made in Taiwan (1 Piece, 3/8")

ECELLENT

Worked great. Can't beat the price.

I purchased this Speed Tiger IAUE for a finishing mill and it did not disappoint !! It leaves the best edge finish on aluminum our of all mills that I have tried to date (and that's a lot). This thing leaves a mirror-like finish. These are results that you would usually only expect out of high-end CNC milling machines. I did this with a CNC router !! Now granted, it's a higher end and rigid router (ShopSabre), but still nowhere near as rigid as a mill. The Speed Tiger IAUE will perform as advertised, but I am personally using a LakeShore Carbide TAS as my rougher and the ST IAUE as a finishing mill. I originally purchased the 3/8 but I now own the entire set with backups. Highly recommend this mill for aluminum work !!

Used this cutter for a deep slotting operation in aluminum plate. Cutter (3/8" dia) performed very well, cutting full width .25" depth of cut per pass at about (power feed not CNC) .003 per tooth chip load. I used a straight plunge to start the cut and it did equally well but if you have a CNC I would use a ramping strategy. One cutter did 32 parts with over 72" of slotting in each part with no appreciable wear, cutter was still objectively as sharp as new (when I dropped it on the floor in a toolholder and broke it 😖). Used mist coolant system throughout the process and keeping it wet made a big difference in cut quality. Chip evacuation was good and surface finish on finish pass was outstanding. I bought a couple more just to keep on hand for future jobs. Great cutter at this price point.

I used this cutter the other day in the fabrication of a fixture for a large air compressor piston refurbishment, I used it in a helix in cutting motion to pocket out some holes for the fasteners, it does a great job of clearing the chips and leaves a mirror like finish....be careful handling these cutters, they are sharpened like razor blades with a high polish finish on them.