REETAI-FOUR 10Pcs TCT Hole Saw Kit,Tungsten Carbide Tipped Hole Saw Set, Hole Cutter Heavy Duty for Stainless Steel.(5/8-2-1/8”).

Like them for drilling big holes quickly in mild steel up to 1 inch thick

Great for plastic, it wont go through metals like advertised, would not buy again

Drills bits shattered as they touched cold steal, but the outer cutters remain strong

NA

This product made it 3 holes before failure. All teeth are destroyed. I know these are vheep but they are trash. Hols look like they were cut with normal holesaw. Do not waste time or money on these.

Only used 4 so far and 2 of them didnt make it through 6 holes each and the teeth came off

Used em to cut through 1/4 aluminum. Went through cleanly, like butter.

These hole saws are fairly tough but beware of a few issues. First the Pilot drill bits are much to hard and brittle and under the load of drilling a larger hole can break easily. The other issue is that since these saws use welded on carbide chips, they are fairly wide and therefore cut a wide kerf and means the drill needs to be pretty heavy. In metal the saws also like to grab in material so be careful. This is also when the bit usually gets broke. All in all the price is right as long as you are aware of limits.

Drilled one hole in 304 stainless 16 gauge tubing using the 35mm. It made the hole but no teeth left. Not sure about these bits yet. Update, drilled 18 gauge mild steel.... no teeth, even used oil. On aluminum they make great holes.

Calidad en el corte y funcional