25mm 60° Countersink Diamond Drill Bit, 5pcs – 60 Grit, 6mm Shank for Stone, Glass & Tile

The 25mm 60° Countersink Diamond Drill Bit, 5pcs is a precision countersinking, hole chamfering, and deburring tool engineered for stone, glass, ceramic, and tile. Featuring durable 60 grit electroplated diamond abrasive on a sturdy 6mm shank with a 60-degree cone profile, this 5-piece set delivers fast, controlled beveling to prevent chipping and produce clean, smooth hole rims.

• Head Diameter: 25mm
• Cone Angle: 60°
• Grit: 60 Grit medium-coarse diamond for rapid countersinking
• Shank Diameter: 6mm standard drill / rotary shank
• Quantity: 5-Pack (5 pieces)
• Bond Type: Electroplated diamond
• Applications: Edge beveling, hole deburring, countersinking, and hole enlarging on granite, marble, stone, tile, ceramic, and glass

For best cutting performance and tool longevity, always operate with water coolant or lubrication.