Available materials: ceramics, microcrystalline stone, granite, ceramic tiles, ordinary glass, marble, vitrified bricks and other materials for drilling. Note: water cooling is required throughout the use, and tempered glass is prohibited. Compatible equipment: electric drill, bench drill. Diameter 25mm: 4 pipes (generally tap water pipes and water heater pipes). Diameter 32mm: 6 points in charge (generally tap water pipes and water heater pipes).
40mm diameter: 1 inch pipe. Diameter 55mm-63mm: 1P-2P air conditioning ducts and toilet ducts. Diameter 76mm: 2P-5P air-conditioning cabinet pipe. When manufacturing parts, to make them interchangeable, the parts should be within the specified maximum and minimum limits. The permissible size variation is: tolerance, but they all fall within the scope of the industry regulations.Contact online customer service for information on specific tolerances. When the product is ordered, the tolerance is accepted by default. This item is in the category "Business, Office & Industrial\CNC, Metalworking & Manufacturing\Woodworking Supplies\Wood Drill Bits". The seller is "zly_0703" and is located in this country: CN. This item can be shipped worldwide.