J - Spring Set (3) for Millers Falls Chucks - Patented by H. A. Ryther in 1923

This Spring Set is for a chuck designed and patented by Henry A. Ryther.

The patent was issued on October 9, 1923 with a number 1,470,197. The patent and production rights were assigned to Millers Falls Company.

Most often this chuck is found on MF No 2 Hand Drills.

Chuck dimensions:

Capacity:  0 - 3/8 inch
Outside diameter:  1 1/4 inch