مطحنة كروية طويلة الوصول .008 مع وصول 1.9 مم

The relief grind behind the flutes lets me plunge deeper without rubbing, which was the whole reason I switched to these. Solid carbide at 1/8" shank holds up fine in my little router for aluminum. Cut finish was cleaner than the two-flute I had before.

That 1.9mm reach got me into a deep pocket I couldn't touch with my standard 1/8 bits. Carbide holds an edge nicely too, still cutting clean after a few hours in aluminum.

The relief grind behind the flutes makes a real difference when you're cutting deeper than the flute length. I ran it in aluminum at 1/8 shank and it held a clean edge with no chatter. Runout on mine was basically nothing right out of the tube.