Carbide Burr 1/4" Shank, SL-4 Tungsten Double Cut Rotary Die Grinder Bits - Cutting Burrs for Milwaukee, Dewalt and Makita Die Grinder Accessories - Wood Carving Metal Working & Sturdy Storage Case

Feeling good quality I decided to remove some welds which were too high. Be careful when using it as it cut in one direction and jumped badly when going into a different direction. Could not see any chips or damage to the bit. Used on a compressor.

Nice and sharp and dont dull out

I used these for trimming fibreglasss parts for Boeing years ago. Now I use them for shaping rough rocks.EXCELLENT quality, 1/4" shank very strong, I use in 2800rpm drill. HIGHLY RECOMMEND!!

Ya utilice este producto en diferentes tipos de metales y hasta el momento no he tenido problema alguno, la recomiendo.

I'm getting into more and more woodworking types and wanted to add a nice grinder to my inventory. This one works perfectly, leaving wood smooth and needing minimal sanding after use.A very quality looking and useful bit. Highly recommended.

I've been working an alabaster sculpture with it for 3 hours and it's still eating stone. My problem is with the foredom H44T handpiece whose bearings seized, and with the external cable I was using which overheated and broke apart./It came from the following handpiece. I've had it for quite a while, and have done probably 20 hours with it before it broke apart. I noticed that the inner cable was not engaging with the handpiece and that I had to push the handpiece back into the handpîece to get it to engage with the key end.The handpiece bearings seem to be holiding out. In the past I've had an issue with the little 1/2 inch nut which holds the handpiece bearings in the shaft coming loose but haven't had that issue for a while.It seems that it is always a struggle with either the innershaft overheating due to poor or insufficient lubricating . I've snapped 3 Foredom S93 inner shafts 100mm at about 4 inches from the key-end. I attribute it to overheating/and or insufficient lubrication and a bending action (overtorque)near the handpiece.Tech-L Flex Shaft 560W 6.5MM Flex Shaft Rotary Tool 1/4 Inch HP Flex Shaft Grinder Multi-function Tools Foot Pedal Control Kit for Carving Buffing Drilling Polishing(560W)