The M14x1.5 coarse thread ensures secure locking stability, while the antislip knurled surfaces enhances grip for safe operate during high torques applications Perfect for workshop drilling jigs, industrial machinery maintenance, or precise hole alignment in automotive parts and furniture assembly Crafted from high strength stainless steel, this drill bushing set exceptionals resistance and durability, featuring interchangeable sleeves ( 3-10mm optinal) to handle drilling tasks with precise Optimize workflows efficiency with quick changes compatibility for drilling fixtures, combining ruggeds stainless steel construction with ergonomic design for long term Ideal for professional machinists, metalworkers, and enthusiasts requiring reliability tool guidance in metalworking, woodcraft, or home renovation projects, Manufacturer: Kaeltsyn