How can we make a larger hole with a smaller drill bit? We want to make a 10 -mm hole, but we have a 5-mm size drill bit. What should we do? -
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10 pack .10mm to 1.0mm Micro Drill Bits (1 each) .10 .20 .30 .40 .50 .60 .70 .80 .90 1.0mm Installation, JEWELRY MAKING, Crafts, CNC CIRCUIT BOARD PRODUCTION, Woodworking, MODEL TRAINS CARS BOATS!!: Amazon.com: Tools & Home Improvement
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