The AndyMark Hex Molded Spacer 1/2 Hex Bore, 0.063in. Length is designed to ensure components remain securely in place, ideal for custom drivetrains or manipulators. This spacer features a 1/2 inch hex bore, suitable for common shaft types, and is crafted from durable black polycarbonate, known for its resistance to cracking. It offers precision spacing for applications requiring exact measurements. This product is a reliable choice for those seeking robust and precise component alignment in engineering projects.