limit swivel groove:The innovative design ensures precise hole openings, preventing over-drilling and maintaining accuracy, and it guarantees professional-grade results in plumbing and DIY projects. high-quality materials:Constructed from high-quality materials, this bit is wear-, , and to withstand abrasion and , ensuring and reliability. efficient reaming and drilling:This step drill bit combines reaming and drilling functions into one, allowing you to efficiently create clean, precise holes in various pipes. universal hex shank design: Featuring a hexagonal shank design, it is compatible with a wide range of hand drills and lithium drill equipment, providing versatility and ease of use. wide application range:Suitable for drilling water pipes, PPR pipes, PVC pipes, plastic pipes, and pipes, making it an essential tool for plumbers, contractors, and DIY enthusiasts alike., Manufacturer: Akfldms