Cylindrical Hollow Bushing Sleeve with Carbide Guide Bushing and Axial Through-Bore

A carbide guide bushing ground oversize on the OD or undersize on the bore ID seats incorrectly in the drill jig plate and allows the drill to wander off-axis; bore cylindricity and OD-to-bore concentricity are the callouts that determine whether the bushing positions the drill correctly and whether it seats fully in the jig without rocking. Suzhou Dazhi Intelligent Manufacturing Technology (Suzhou, Jiangsu) grinds this cemented carbide guide bushing with axial through-bore using internal cylindrical grinding and external cylindrical grinding at their facility (on the order of 4,000 m²), with bore ID, OD concentricity, and bore surface finish confirmed against your released print during in-process inspection. Dazhi's Suzhou facility specialises in non-standard automation parts, aerospace components, and medical parts; bore and OD dimensions are documented on the inspection record before shipment. For pricing, provide bore ID tolerance, OD fit class, bushing length, and carbide grade from your print. For a grinding price estimate from our suzhou team, active in automotive, military, and robotics.