Part numbers 1617200077 and 1617200056 fit a wide range of Bosch drill and hammer drill models. The compatibility covers the following tool families and specific models: - GBH 2 SR, PBH 240 RE, GBH 2-24 DSR, PBH 20 RLE, GBH 2-24 DFR, UBH2/20 RLE, GBH 18-2RE - PSB 500 R, GAH 500 DSR, PSB 550 RE, GSB 2-650 RE, PSB 16R, GSB 2-600 RE, CSB 16 RE - GSB 16 RE, CSB 480 RE, GSB 18 RE, CSB 500 RE, GSB 18-2 RE, CSB 500 RLE, GSB 20-2 RE Benefits and how it helps - Broad compatibility across multiple Bosch tool families reduces the need for multiple replacement parts - Ensures proper fit and alignment with listed models, helping maintain performance and reliability - Simplifies inventory for technicians and contractors by covering a wide model range with two part numbers - Clear identification of compatible models aids quick selection and reduces downtime Key attributes - Function: replacement/compatible part designed to fit the specified Bosch tool models - Compatibility: validated across the GBH, PBH, PSB, GSB, CSB, and UBH tool lines listed above - Size and material: not specified in the original description - Performance: designed to maintain proper fit and operation with the listed models Use scenarios - On a construction site, workers switch between different drill models for drilling and chiseling tasks and use this part to maintain consistent performance across tools - In a workshop or service center, technicians service multiple model lines with a single compatible replacement to streamline repairs - In a home renovation project, a homeowner preserves tool usability by keeping a broadly compatible replacement on hand for older or multi-brand toolsets Compatibility at a glance - Part numbers: 1617200077 and 1617200056 - Fits: GBH 2 SR, PBH 240 RE, GBH 2-24 DSR, PBH 20 RLE, GBH 2-24 DFR, UBH2/20 RLE, GBH 18-2RE - Fits: PSB 500 R, GAH 500 DSR, PSB 550 RE, GSB 2-650 RE, PSB 16R, GSB 2-600 RE, CSB 16 RE - Fits: GSB 16 RE, CSB 480 RE, GSB 18 RE, CSB 500 RE, GSB 18-2 RE, CSB 500 RLE, GSB 20-2 RE