Replacement Pipe Die Compatible Pipe Size 1 in Compatible Material Type Galvanized Steel Iron Thread Type NPT Compatible Thread Direction Right Hand Die Material Alloy Steel Die Head Compatibility Westward Handheld Compatible Threader Series 4YR89 Application Pipe Number of Dies 4 Threads Per Inch 11 1/2 Compatible Threader Type Handheld Manual Power Threaders Compatible Bolt Size Not Applicable Compatible Die Head Grainger Part Number 4YR89