Quality Precision Sensitive Drill Attachment 2MT Shank For JT2 taper Drill Chuck. Designed and developed for working with fine drills. Breakage in fine holes is further reduced due to the manual control on the drilling force. Shank is precisely ground. For drill chuck with JT2 holder. The drill jig allows the drill to be pulled out quickly for lubrication and chip loosening. The drilling device eliminates the tedious hand cranking of the tailstock and thus enables an efficient workflow!