15mm 120° Sintered Diamond Countersink Drill Bit, 5pcs – 8mm Shank, 1.2mm Pilot Tip for Granite, Tile & Glass

The 15mm 120° Sintered Diamond Countersink Drill Bit, 5pcs is an industrial-grade, long-lasting hole chamfering and wide-angle beveling tool engineered for granite, marble, tile, glass, and hard ceramics. Built with solid sintered diamond matrix and an integrated 1.2mm pilot tip on a heavy-duty 8mm shank, this 5-piece set ensures true centering and exceptional wear resistance throughout its full depth.

• Cutting Width: 15mm
• Cone Angle: 120° (Wide Angle)
• Pilot Tip Diameter: 1.2mm for precise hole centering
• Shank Diameter: 8mm heavy-duty drill / rotary shank
• Quantity: 5-Pack (5 pieces)
• Bond Type: Sintered diamond matrix (diamond impregnated throughout)
• Applications: Heavy-duty edge chamfering, hole deburring, wide-angle beveling, and countersinking on granite, porcelain tile, quartz, glass, and ceramics

Mandatory use of water or coolant during drilling to prevent thermal shock and maximize tool life.