Pressmaster mct crimp dies and ratchet crimp tool pressmaster 4300 3149aaa the pressmaster ratchet crimp tool 4300 3149 is a professional tool for use with most types of mechanical electrical and electronic connectors the parallel action stroke generates a maximum force of 10000n yet this tool remains lightweight and compactthe crimp nests are positioned to give the user good visibility when inserting the connector and wireeasily interchangeable crimp dies are kept together with a speci