12pc Diamond Core Drill Bit Set 4-50mm for Glass Tile Ceramic

12 Pcs Diamond Drill Bits - Glass and Tile Hollow Core Drill Bits

• Material: Steel
• 12pcs 4-50mm Diamond Hole Saw Drill Bit Set: 4mm, 5mm, 6mm, 8mm, 10mm, 14mm, 16mm, 18mm, 22mm, 35mm, 40mm, 50mm

• Diamond coated core drill bit removes complete circles from glass, tiles, marble, granite, ceramic and other materials
• Can be used with standard electric drills
• Shank diameters vary by size for proper fit

• Always use water for lubrication
• Start holes diagonally, make a round trace, then drill straight
• Use reduced drill speeds and minimum pressure
• Smaller diameters allow faster speeds; harder materials require slower speeds

Ideal for drilling: Glass, Tile, Bottles, Blocks, Jars, Fiberglass, Porcelain, Ceramic, Slate, Marble, Granite, and Light Stone.

• 8mm bit: 6mm shank
• 10mm & 14mm bits: 6.8mm shank
• 16mm bit: 7.1mm shank
• 18mm bit: 8.5mm shank
• Other sizes: 10mm shank

• Free samples available for testing
• Sample lead time: 7-10 days
• Delivery options: Sea, Air, or Express
• Production lead time: 20-30 days after deposit
• Payment methods: T/T, L/C, Western Union
• Payment terms: 20-30% deposit, balance before shipment