To prolong its using life, must use with water for cooling and lubrication. Gold paints on the body of this bit to avoid getting rusty. Feature drilling stably, fast speed, not breaking the border.
The hole saw can be used with Bench drill, hand electric drill. When you using hand electric drill, start slowly, 45 degree angle, go vertical after you make an initial mark. Tip Size(option) : 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 25mm 28mm 30mm 32mm 35mm 38mm 40mm 45mm 50mm 55mm 60mm. 1 x Diamond Hole Saw.
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Your satisfaction is very important for us. If you have any problems, we are very glad to help you. This item is in the category "Business, Office & Industrial\CNC, Metalworking & Manufacturing\Woodworking Supplies\Wood Drill Bits". The seller is "lapsun_gift" and is located in this country: CN. This item can be shipped worldwide.