A Dormer twist drill bit 8.5mm is used for drilling holes in a variety of materials. It is made of high-speed steel and has a twisted fluted design that removes chips and debris while drilling. The 8.5mm size refers to the diameter of the hole that the drill bit can create. It can be used with a drill press or hand-held power drill. It is suitable for use on wood, metal, plastic, and other materials.
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