Review on π Premium Diamond Drill Bit Cylindrical Burr Kit - Perfect for Jewelry, Beach Glass, Shells, Gemstones, Lapidary - Aiskaer 60 Pcs Set by Anthony Heinrichs
Expect just a few useful bits from the kit
Attempting to drill through two small rocks, 1/4" and 3/8" thick, it took 10 bits to to make a dent at all. On the 11th bit I found one where the coating did not come off immediately and drilled two holes by itself. And yes, I did this in a small tub of water, keeping the bit cold and moving at a moderately slow speed. It worked in the end, but going through 10 bits before you find one that actually works is very frustrating. There are 60 of these in the set, I believe only 3 to 6 of these will be viable. So base your purchasing decision on that.
- Confident
- So far so good
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