Replacement for H4012IR Drill Bushing, Type H, Drill Size P (10Z229) A precision replacement bushing designed as a direct substitute for the H4012IR drill bushing. This Type H bushing in Drill Size P (part number 10Z229) restores drilling accuracy and repeatability for fixtures, jigs, and machinery that specify the H4012IR bushing. Key benefits Direct replacement: Form, fit, and function match the H4012IR Type H specification so installation is simple and predictable. Restores accuracy: Returns hole location and diameter control to original tolerances, reducing scrap and rework. Minimizes downtime: worn or damaged bushings quickly to get equipment back into production. Costeffective maintenance: Extend the service life of tooling and fixtures without full component replacement. Features and attributes Compatibility: Replacement for H4012IR Drill Bushing, Type H, Drill Size P (10Z229). Use wherever the H4012IR Type H, size P bushing is specified. Functionality: Provides guided support for drill tools to maintain concentricity and repeatable hole placement. Dimensional conformance: Manufactured to Type H bushing dimensional standards to ensure proper seating and alignment. Identification: Clearly referenced by drill size (P) and part number 10Z229 for easy ordering and inventory control. Performance and use Delivers consistent guidance for drilling operations, preventing bit walk and improving finish. Suitable for and preventative maintenance programs where original Type H replacement bushings are required. Helps maintain tool life by reducing offcenter loads on cutting tools. Typical applications and maintenance of machines and fixtures that use the H4012IR Type H bushing with Drill Size P (10Z229). Replacement bushings in production jigs and repeatdrilling fixtures to restore original hole accuracy. Field service or maintenance kits for manufacturing lines that require quick, reliable bushing swaps. Ordering and identification Part reference: 10Z229 Specification: Replacement for H4012IR Drill Bushing, Type H, Drill Size P If your equipment or fixture lists the H4012IR Type H bushing in Drill Size P, this direct replacement (10Z229) provides the required form and fit to restore proper drilling guidance and repeatability.