Axminster-Woodturning Woodscrew Chuck 38mm - 1" x 8tpi
The 38mm (1.1/2") diameter wood screw chuck is a great choice for wooden fruit, drawer knobs, finials and other smaller projects of this type. The central screw is stainless steel with a deep sharp thread for a positive and secure hold. It only requires you to drill a single shallow hole in the blank.
The screw fitted as standard to the chuck has a core diameter of approximately 4mm and a 19mm tapered thread.