12 mm Durchmesser 1/4 Zoll Sechskantschaft gesintert Diamantkern Bohrer Bits für Mauerwerk Stein
Specifications:Drilling Diameter: 12mm / 0.47"Hex Shank Size: 1/4"Working Depth (Max .): 43mm / 1.69"Total Length: 73mm / 2.87"Material: Sintered Diamond, Carbon SteelPackage Content: 1pcs x Diamond Core Drill BitsDescriptions:Diamond grains are permanently sintered to the cutting edge from inside to outside. Sintered diamond has the sharpening property but electroplated or brazed diamond can not be sharpened. Provide high efficiency, fast and smooth drilling, but also ensure longer working life.Suitable for drilling porcelain, tile, marble, stone, masonry, brick, glass. Can be dry or wet use. It is recommended to be used with water for cooling and lubrication to prolong the using life and increase the performance. Large clearance hole facilitates entrance of cooling water and escape of chips and other particles from drilling.
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