Color-coded to correspond with clamping positions for pushed and drawn parts, ID grippers offer alternative to suction cups and sprue grippers for workpieces with holes or recesses. Elastomer bellows, respectively rated to withstand temperatures up to 266 and 392°F, are made of EPDM or FDA-approved silicone. Made of anodized aluminum, these single-acting, pneumatically operated expansion grippers do not leave any marks on workpieces and are expanded by pneumatically driven pistons.