LD-200 HSS Tap and Die Threading Set | Wholesale Supplier

The LD-200 HSS Tap and Die Threading Set is a comprehensive thread cutting and restoration toolkit for automotive mechanics, machine shop technicians, industrial maintenance professionals, and metal fabricators who need to create clean, accurate threads in metal components or repair damaged threads on bolts and studs. The set includes high-speed steel (HSS) taps for cutting internal threads in pre-drilled holes and HSS dies for cutting external threads on cylindrical blanks or restoring damaged threads on existing bolts. Each tap features multiple flutes with precision-ground cutting edges that progressively remove material as the tap is rotated into the hole, with a tapered lead section that distributes the cutting load across multiple teeth for smoother operation and reduced breakage risk. The dies feature a beveled entry face that guides the die onto the workpiece and chamfers the thread start for easier nut engagement. Both taps and dies are manufactured from M2 HSS, heat-treated and tempered to HRC 62-64 for the hardness needed to cut threads in carbon steel, alloy steel, stainless steel, cast iron, brass, and aluminum. The T-handle tap wrench provides the leverage and control needed for accurate tapping, with a 3-jaw chuck that grips the tap square shank securely. The die stock features a 2-screw clamping system that holds the die firmly in place during thread cutting. The set covers the most commonly used metric coarse thread sizes from M3 (small electronic and instrument fasteners) through M12 (automotive and structural bolts), with the appropriate T-handle and die stock included. The plastic storage case with foam insert keeps all components organized and protected. Whether repairing stripped threads in engine blocks, restoring damaged bolts during machinery overhaul, creating threaded holes in fabricated metal parts, cleaning threads before reassembly, or performing general maintenance thread cutting, the LD-200 tap and die set provides the essential threading tools for professional-quality results.