Afunta 16 Pcs Diamond Drill Bit Set Diamond Hole Saw Remover Tools for Glass Porcelain Ceramic Granite Stone Machining Tools 6-50mm

Description

Product details: Material: high quality steel, diamond dust coating. Color: Silver Quantity: 16 pieces. Proper use: Step 1: Mark the hole beginning with a pen and keep the workpiece wet with water or a coolant. Step 2: Hold the drill at a 45 degree angle and at low speed at the beginning. After starting the hole, hold the drill upright. Step 3: Minimum pressure Drive down the speed or drill the other way around to prevent breakthrough and get the drill out of the hole. Dimensions: 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 22 mm, 25mm, 26mm, 28mm, 30mm, 40mm, 50mm Box contents: 16 x Drill Bits.