Elevate your reloading game with the Lee Pro Auto-Disk Powder Measure. Ideal for commercial reloaders or competitive shooters, this measure boasts an elastomer wiper and teflon-coated metal casting for smooth operation. It nearly eliminates leakage and prevents powder cutting. The large hopper with a shut-off valve and brass thumb nuts ensures easy disk changes. Safety is enhanced with a positive pull-back lever. Perfect for mass production reloading, it includes a swivel adapter, spring return lever, and four adjustable disks for precise charges.Lee Pro Auto-Disk Powder Measure Features: Commercial reloaders or competitive shooters first choice! Elastomer wiper and teflon coated metal casting: Make this the smoothest operating measure. Will not cut powder and almost totally eliminates leakage. Large hopper with shut-off valve: Attached with brass thumb nuts for the ultimate in disk changing convenience. Increased safety with positive pull-back lever. Includes swivel adapter and spring return lever: With spring and all four disks. Many prefer the Pro Auto-Disk for mass production reloading. The hopper holds 1/2 pound of powder. Best for reloading handgun cases: May also be used to charge rifle cases with use of Double Disk Kit. Includes 4 disks to adjust your charges with: Disk A = .30 to .43 cc Disk B = .46 to .66 cc Disk C = .71 to 1.02 cc Disk D = 1.09 to 1.57 cc