Original Bosch shim 1610102057 — a thin, flat spacer used inside Bosch SDS‑max rotary hammers to set precise internal clearance. The shim is 0.3 mm thick and functions as a spacing/alignment washer in the hammer/gear assembly to restore correct tolerances after wear or re‑assembly.

This genuine Bosch part is listed for Bosch rotary‑hammer models including GBH 5‑40 D (and DE/DCE variants), GBH 5‑38 D and GBH 538X — a simple replacement when the exploded parts list shows the thin shim missing, damaged, or changed during a repair.

Part number formats you may see on diagrams include 1610102057 or 1.610.102.057; it’s sold individually and installs like a small shim/washer where the parts diagram indicates the position. Use the same thickness (0.3 mm) when replacing

 If you need the specific exploded view position on your tool, check your model’s parts diagram and match the part number 1610102057 to ensure correct placement before fitting.

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