Diamond Coated Twist Drill with 2.3mm Shank – Various Sizes
$16.59
$23.06
Product Details The drill bit should be used intermittently with light pressure rather than a single, high pressure action. Diamond particles are electroplated the the steel drill bits (no adhesive used) Longer lasting, superior reliability & greater accuracy retention Satisfaction guaranteed Diamond coated drill bits are the ultimate for drilling stones, pearls, glass or ceramics Useful for drilling precious gems such as opals, sapphires & emeralds (please note great care is needed when working with such delicate items) Using cooling liquid such as drilling oil or water to improve tool life.
