The AndyMark Hex Molded Spacer 1/2 Hex Bore, 0.100in. Length is an essential component for maintaining the position of parts in custom drivetrains or manipulators. This lightweight spacer is designed to fit common shaft types, including hex and round shafts, and is crafted from durable black polycarbonate, known for its resistance to cracking. Ideal for applications requiring precision, this spacer ensures stability and reliability in various mechanical assemblies.