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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
heat treated
The height can be easily adjusted by holding the handle
It includes a 360° rotating base
and the special wrench is included
apply a small amount of anti-rust oil on the surface of the hole to avoid the natural oxidation
274 - 15 PCS DIAMOND DRILL BIT SET heat treatedMade of industrial grade carbon steel with nickel coated body to resist corrosion. This diamond drill bits are made of high strength Carbon Steel with smooth nickel plating surface to extend the service life. Each diamond hole saw was coated with high quality Diamond to enhance the drilling speed and creates a sharp, high precision and smooth cut with no broken edges In Seconds. Reduced drill speeds, low drill pressure and increased use of water
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