64298190140, Fein 1/2" Chuck and Adapter for JHM Holemarker II Drill 1/2" chuck and adapter for JHM Holemaker II Features: Convert Slugger drilling machines into portable drill presses in seconds. Ideal for small and blind hole applications Easily converts Jancy Holemaker II to use twist drills Specifications: This adapter is for using bits smaller than 7/16 of inch for the Jancy Holemaker Comes with 1/2" Jacobs chuck, spindle adapter, and chuck key Drill Chuck & Arbor Adapter, For Use With 4KYN7 Magnetic Drill Press, 1/2 In Capacity, Includes Chuck Key