Souber UMK Souber UMK Universal Multi Purpose Tool Two Zinc coated solid diecast keys for quick and easy operation of Euro or Oval Cylinder operated mortice locks. An ideal tool when fitting locks and replacing cylinders. Long Version: Quick locking and unlocking for Euro and Oval locks. Markings to determine accurate cylinder length. 3 square drives for operating 6mm, 7mm and 8mm spindles. 3mm Hex drive to handle Allen head screws. Tapered square drive for follower operation with size markings 7mm to 10mm. Short Version: Just like the long version but perfect for half cylinders.
