13-18" Quick Change Tool Post CXA 1/32-1/2" CNC Keyless Drill Chuck Holder New. 13-18 CXA #5 Quick Change Morse Taper Tool Holder #3MT 250-305. QUICK CHANGE TOOL POST CATEGORY. QUICK CHANGE TOOL POST SERIES. Used for drilling and reaming. Interchangeable with Dorian Aloris & Phase II Series. Made of high quality Alloy tool steel 40Gr which is forged and has longer life. High quality 10.9 grade galvanized screws which have 1 time longer life than others. Height adjustment screw allows to accommodate various center height of different lathe chuck. 1/321/2 CNC Keyless Drill Chuck....