Dapra AM138-JT3 Jacobs Taper Adapter is a toolholding accessory built around a Jacobs JT3 taper to enable secure mounting of Jacobs-taper tooling in compatible spindles. Identified by part number AM138-JT3, this adapter is used to connect Jacobs-taper chucks or tooling to machine-tool spindles in milling and drilling setups that require a JT3 interface. The key specification is the Jacobs JT3 taper, with the AM138-JT3 designation ensuring correct pairing within Dapra’s lineup for precise alignment and reliable grip during operation.
