4500 Lube Sizer/Lubricator With Gas Check Seater by LYMAN Squarely seated gas checks are a must for accurate loads. This ingenious and patented device allows consistent and square seating of gas checks. Works on all Lyman #450 and 4500 Sizer/Lubricators and RCBS Lube-A-Matic. Heater is sold separately.
