Established in 2002, Shanghai Sunway Industry specializes in cover tap and die-threading tools of cutting, which are made of HSS-Co, HSS-M2, HSS-4341 and carbon steel with ANSI, ISO, DIN and JIS approvals. Our screw extractors are designed as repairing tools for threading. You can also order our square and spiral screw extractors and reamers of straight flutes, spiral flutes, construction, bridge and jobber types, which are all made with M42, M35, M2 and HSS-4341 materials.
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