6 PCS Tungsten Carbide Tip Drill Bit Set, AFUNTA Multi-Material Twist Drill Bit for Concrete Tile, Brick, Glass, Plastic, Wood, Carbide Tipped Mandrels Saws-6mm,8mm,10mm, 12mm

Parameter: Material: Tungsten carbide Color: Black & Silver Used for: tile, concrete, brick, glass, plastic and wood, etc. Package Dimension:145*55*15mm/5.7*2.2*0.59in Product length: 6mm drill bit: 100mm/3.9in 8mm drill bit: 118mm/4.6in 10mm drill bit: 122mm/4.8in 12mm drill bit: 126mm/5in Notice: When drilling hard material (glass, porcelain floor tile, marble or granite), please use water for lubrication Package include: 2x 6mm(0.23in)3-flats shank allows drill bit 2x 8mm(0.31in)3-flats shank allows drill bit 1x 10mm(0.39in)3-flats shank allows drill bit 1x 12mm(0.47in)3-flats shank allows drill bit