AYSUM 6-Inch Long Carbide Rotary Burr Set 6 mm (0.25 inch) Shank Long Reach Double Cut Tungsten Carbide Rotary File Set Fits Rotary Tool for Woodworking Drilling Carving Engraving, 4pcs

Love these. Would like 1/2" cutter head though. Regardless, they are Lifesavers. You don't know you need it...till you do. And others will ask to borrow them. Carbide cutters are great, tough and withstand a beating. They do chip. But need speed to prevent. Also wear gloves and safety glasses!! Watch out for the shards!

Long shank can bend at high RPM, but they are sharp and work well for hard to reach places. Take your time and go slow. Perfect for those times nothing else will work.

well made

Buena calidad

Was as described

Shipped fast. Nice that they come in their own protective sleeve to keep them in their own spot in the box. They dig and grind out the metal casting bits on the 6.0 powerstroke burs. Helps get rid of the rust fast and I can watch it pile up. They worked great.u will be very happy.

I use these bits to port some of the mini bike heads on the channel. They are long enough to easily reach into the ports to smooth out the rough and sharp edges. Also, there are a few different tips to accommodate different parts of the port. Great bits for the money. YouTube BLACK66

The bits are not at all what they seem to be in the picture, they’re just over flush with the OD of the shaft. The pictures show the burr outside of the shaft. Do not purchase if not intended to use the burr in the picture. Plus they’re not sharp at all and do nothing