Material - Using electroplated diamond (50-60 grits), the opener creates precise, smooth cuts with no broken edges. Nickel plating improves hardness, wear resistance, corrosion resistance, and greatly extends the drill bit life.
Features - The serrated drill bit increases the sharpness and opening speed. Sharper and more durable than ordinary electroplated drill bits, especially suitable for thick glass openings. (10mm thick glass generally has about 300 openings.)
Applications - Widely used for cutting accurate holes on glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, light stone and fiberglass. Not suitable for drilling tempered glass, plastic and wood. Use on ordinary hand drills or bench drills.
Notice - Always work with coolant (water) when drilling. Start your hole diagonally, make a round trace and then hold drill straight. Use at low drill speeds and drill pressure. Not suited for use on concrete or for depths beyond about 1/2".
HARFINGTON 5pcs Masonry Drill Bits, 7mm Concrete Drill Bit 1/4" Hex Shank Ceramic Tile Drill Bit Carbide Tip for Brick, Glass, Plastic, Ceramic Tile, Wall Mirror, Black
KWD 3.500
HARFINGTON 6542 High-Speed Steel Twist Drill Bit, 6mm Drill Bit 200mm Length Extended Straight Shank Black Oxide Ground Drill Bit for Steel Aluminum Alloy
KWD 3.500
HARFINGTON 2pcs 1/4" Hex Shank Drill Bits 4.2mm Titanium Drill Bits Set M35 High Speed Steel Twist Drill Bit 95mm Long Fully Ground for Wood, Stainless Steel, Metal, Plastic Plastic
KWD 4
HARFINGTON 4pcs Solid Carbide Drill Bits 1.55mm C3/K10 Tungsten Carbide Precision Mini Micro Straight Shank Twist Drill Bit for Stainless Steel Metal Plastic Wood
KWD 4
