These are the parts that hold a toolholding setup together rather than the toolholders themselves: pull studs, collet nuts, back stop screws, clamp screws, drive rings, and the spanners and hex keys that go with them. Match them to your holder type and spindle size, not just to what's on the shelf.
A few of these matter more than they look. Pull studs and back stop screws set how a tool locates and clamps — worn or wrong-length ones show up as run-out. Spindle wipers keep coolant and swarf out of the taper between tool changes. If you're not sure which spare fits your holder, check the size markings on the original part or get in touch and we'll match it.
