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35mm diamond core drill Bit(sometimes called diamond hole
saws) with matrix diamond segments and pipe side diamond vacuum
brazed for drilling granite stone concrete brick etc., common uses would be small projects such as drilling out sink holes for
faucets. Under same bond condition, the
drilling speed and life with diamond matrix
segments are both minimum 20% more than other regular
drill bits.
Welding method: silver welded or laser welded. Dry or wet use(water
coolant is much better for drilling performance and working life).
Suitable for electrical hand-held drillers.
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