Extended Shank for Deeply Drilling: Long shaft design allows drilling into thick materials like furniture panels and doors up to 100mm depth, suitable for bench drills, pillar drills, and handheld electric drills Strong Construction: Made from steel with heat for hardness and wear resistance, maintaining sharpness during frequent use without chipping or deformation for extended lifespans User Friendly: Built in chip removal grooves clogging during drilling, while the antislip shank ensures secure attachment to drill tools for stable and safe operations Professional Multi Tooth Designs: Features multi tooth cutting technology for faster and smoother drilling compared to traditional two bits, creating clean and precise holes in wood with efficiency for woodworking tasks Wide Compatibility: Suitable for wood, plywood, wood,, and so on, ideal for furniture making, installation, hinge slotting, and woodworking projects, Manufacturer: Obotsnoi