Review on 🛠️ Amana Tool Adjustable No Thrust Countersink by Richard Cartner

If I could give these zero stars, my drill bit would have broken on the 4th hole I drilled. Look at the photo and note the chipped carbide on the drill bit. Waste of $$$. EDIT: Thinking about it and decided the real problem is the cheese drill. Ordered another one, measured the hole with a negative pin gauge and found it was about .128". I thought the through hole on these countersinks was for #30 drill bits. No. 30 has 0.1285, which is . 0035 instead of 1/8 drill. This tool is designed for #8 screws, which are a smaller .123 diameter. So I ended up with a cap length (that's the length of the included cheese drill bit) #30. The drill bits, which I also checked, are (snug fit, good for concentricity, which you need when grating!) into the Amana body introduced and appears to be ready. Spend a little more money on better quality drill bits and you might get a better result. I think the carbide chipped when the original bit broke in my project. That still worries me, but they're better constructed than the vast majority of case countersinks, which inevitably oscillate back and forth when setting the depth. 3 stars for the design alone, one star first for the cheap drill bit that comes with it. On the plus side, with a clearance of less than 0.001 or so, the bit sits snugly in this hole and there is no noticeable wobble - even when adjusting the depth of the hole. Tightly locked like a bank vault.