sourcing map 10pcs 1mm HSS High Speed Steel Diamond Twist Drill Bit for Glass, Shells, Stone, Tiles

[DIMENSIONS] - 1mm diameter, 11mm long twist drill bit with a 0.7mm shank. [MATERIAL] - Diamond-coated high-speed steel (HSS) is manufactured using spiral technology, offering both toughness and hardness, and is not easily broken. The drill bit is sharp and allows for easy chip removal. [APPLICABLE MACHINE] - Widely used in rotary tools such as hand drills, pillar drills, flexible shafts, bench drills, and overhead grinders. [APPLICATION] - For drilling small holes in glass, metal, shells, jade, pearls, marble, stone, drywall, and wire. Due to the varying hardness of the material, the drilling effect will also vary. [NOTICE] - When drilling, it is necessary to add cutting fluid in a timely manner for lubrication and cooling. This results in a better wall shape for the drilled hole, extending its lifespan and improving drilling accuracy.