Replacement Pin for Drive Chain Riveter Tool. This replacement pin fits a compatible drive-chain breaker/riveter tool for the specified pressing or riveting operation. It is a replacement tool component, not a complete chain breaker/riveter. Fitment / Compatibility Universal / Custom: Replacement-tool-pin use only. Confirm the exact breaker/riveter model, pin diameter and length, working-end profile, retention method, chain size, and intended operation before ordering. Product Details Use area: Replacement pin for a drive-chain breaker / riveter tool. Before Ordering Confirm the exact tool model, pin dimensions and working-end profile, retention method, chain pitch, and whether the pin is for breaking, plate pressing, or riveting. Install the pin fully, align the chain and anvil squarely, and replace any bent, chipped, or mushroomed tool pin before applying force.