A vertical slide on the cross-slide enables the material to be raised or lowered as necessary. Widening the slot in a piece of material by machining along one edge with an end mill is an example. The same is true when all that is required is an initial height setting of work in relation to mill or cutter. The vertical slide admits of quick adjustment. A self-centering vice is to automatically center and clamp the workpiece, which saves time and effort compared to traditional vices that require manual adjustment to center the workpiece. This feature is particularly useful when working with cylindrical or symmetrical workpieces that need to be precisely positioned for machining. Lathe Vertical Milling Slide T-Slotted Caste Iron Bed of 125 mm X 100 mm in milling slide Vertical milling slide movement is approx 80 mm. Has 3 T- Slots on Table 10 mm Wide at the top of the T is 15 mm wide at the bottom of the Tee allows milling on your lathe machine Supplied with a 50 mm Caste Iron Self Centering Vice (EN31 Alloy tool steel hardened jaws) Hardened Jaws with Horizontal / vertical Vee for Holding Round Jobs Intact. Maximum Jaw Opening 55 mm, Jaw Depth 28 mm