Review on 45 Speed Steel Gauge for Gyros 22010 by Bryce Marshall

For the first time with such tiny drills. This was an attempt to drill a 1mm check valve into a part I couldn't find. I was surprised the .035 didn't come off. My cheap drill had quite a bit of vibration and wobble, but the drill steel was flexible enough to handle it. Please note that I purchased a collet small enough for these drill bits from this manufacturer. My advice is: 1 Don't overtighten the collet, it may damage the drill bit. 2 Use a light machine oil when drilling. 3 Stop to let cool and add more oil. 4 Use as little pressure as possible Magnifying glass to see what you are doing 6 Put on safety goggles 7 If the impact is severe, insert the tip of the drill into the hole (or guide) before starting the motor start at low speed 8 Set everything carefully, being careful not to drop, force the drill or bend it. Overall I am very satisfied and can recommend these drills.