This adapter allows for easy changeout for twist drilling bits. Includes: (1) 3/4" Weldon Arbor (1) 1/2" drill Jacobs tool holder (1) Chuck key MAG DRILL CHUCK ADAPTER: 3/4" Weldon shank (Industry Standard) to 1/2" Jacobs style adapter ADJUSTABLE: Jacobs drill press chuck converter can be adjusted for use with up to 1/2 dia. Twist drill bits VERSATILE: For use with magnetic drills and drill presses with 3/4 weldon / 2 Flat tool holder.
Also for use on variable speed and reversible drills HEAVY DUTY: THE IBC 17 weldon chuck accessory is high quality, made In Germany and built to handle the most demanding drilling applications. Includes: (1) 3/4" Weldon Arbor (1) 1/2" drill Jacobs tool holder (1) Chuck key.