Practical : our triangular handle multifunctional drill bits are practical for electronic assembling, tooling, making, winding, home decorating and more, you can complete many installments or decorations within these drill bitsReliable and stable: these drill bits are made from carbide with a reinforced head, the durable alloy makes it stable and durable, can prevent the bit from cracking, can support for a long time usingConvenient design: our multifunctional drill bit has designed with a U-type slot which can quickly drill and remove the dust or other particles, the non-slip triangular handle allows you to hold the drill bit tightly and secure it in a drill, then to your efficiencyUniversal objects: these punching drill bits contain pointed and stable carbide tips which can easily penetrate various materials, like tile, concrete, brick, glass, plastic, wood and more, universal and not easy to crack these materialsName:Multifunctional Drill BitsColour:OrangeMaterial:Cemented carbideSize:6mm, 8mm,10mm,12mmPackage Contents:3x 6mm Triple-cornered Drill Bit1x 8mm Triple-cornered Drill Bit1x 10mm Triple-cornered Drill Bit1x 12mm Triple-cornered Drill BitOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.