15 In 1 6-50mm Diamond Glass Hole Opener Ceramic Marble Hole Opener

15 In 1 6-50mm Diamond Glass Hole Opener is designed for drilling holes in glass, marble, and ceramics. It features a range of drill sizes for versatile applications.

• Product type: Drill & Drill Bits
• Compatibility: glass, marble, ceramics
• Material: Diamond
• Specifications: 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 26, 28, 30, 40, 50mm
• Weight: 325g
• Packing size: 12X10X5 cm
• Stable quality with good opening speed
• No broken edges
• Good concentricity
• Will not produce tremors
• Good binding force of powder and nickel
• High wear resistance
• Requires constant temperature and uniform speed during use
• Continuous water supply needed to prevent overheating