B8 staples. They fit:
These are the primary ones that use B8 PowerCrown / STCR2115 staples:Electric: B8E, B8E-Value, and similar
Plier/heavy-duty: B8HDP, B8P (02245), B8
Desk/travel/compact: B8R, B8RC, B8RC-FC, B8RC-2G, B8RCB, B8HC, and related variants
Other brands/models that workMAX HD-88 and HD-88R (Japanese-made desk staplers, often sold with built-in removers). These are frequently listed as taking B8 staples or the equivalent MAX 2115 1/4" (or similar) staples.
Flexi FB-8 (and similar Flexi models). These use F8 / 2115 / B8-style staples and are explicitly noted as compatible with Bostitch B8 and the MAX HD-88/HD-88R.
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