Butterfield BN006-13 Plug Hand Tap, 1-1/4"-12 NF CH4, is a manual tool for cutting internal threads in holes. The 1-1/4"-12 NF designation specifies the National Fine thread size, and CH4 denotes a plug chamfer. As a hand tap, it is intended for manual threading operations where precise 1-1/4"-12 NF threads are required in metal components or assemblies. The BN006-13 model is part of Butterfield's BN006 line, providing a dedicated solution for general-purpose tapping tasks in metalworking and fastener applications that rely on 1-1/4"-12 NF threads.
