WSC-38 Wood screw chuck Key Features: 

38mm(1.1/2") diameter

Three Stainless steel screws 8mm + 10mm + 12mm fitted

Thread form developed for maximum grip

Faces have slightly raised rim to ensure firm location of timber

Description: 

The 38mm (1.1/2") diameter wood screw chuck is a great choice for drawer knobs, finials and other smaller projects of this type. 

Available threads: 

WSC-38-3/4-16: 3/4" x 16pti

WSC-38-1-8: 1" x 8tpi