Small lathe owners often face the same moment: you need to cut a slot, flatten a face, or center a part, and a lathe alone doesn't make it easy. A vertical milling slide with a self-centering vise is one of the most direct ways to bridge that gap. This guide looks at the RSTOOLS Lathe Vertical Milling Slide Fixed Base 4" x 5" And 2" Self Centering Vice Vise at USD 142.04 and helps you decide if this compact package is the right setup for your shop.
Quick verdict
If you want a manual milling attachment for occasional lathe work, the RSTOOLS Lathe Vertical Milling Slide Fixed Base 4" x 5" And 2" Self Centering Vice Vise pairs the two pieces needed for a basic lathe milling setup. The package gives you a 4" x 5" vertical slide with a fixed base, plus a 2" self-centering vise. It won't replace a full-size milling machine, but it can turn a lathe into a more flexible setup for small jobs.
Who it suits
This set suits home-shop machinists and model engineers who already own a lathe and want to cut small slots, step cuts, or keyways without dedicating floor space to a separate mill. The 4" x 5" table and 3-1/8" of vertical slide travel give a practical working range for smaller workpieces. The 2" jaw opening and 2" jaw width on the self-centering vise tell you it is meant for compact parts rather than long stock or large blocks.
What stands out
The biggest draw is how the self-centering vise works with the slide. The design allows self-centering for accurate centering of jobs automatically, and opposite threads let the jaws close evenly for quick centering. That means you do not have to dial in each side of a part separately. The fixed base also removes one alignment adjustment from the setup: if a swivel base is something you don't need, a fixed base is simpler to set up. The included T-nuts, bolts, and Allen key are a practical touch since you don't have to source those separately.
Product note
Lathe Vertical Milling Slide Fixed Base 4" x 5" And 2" Self Centering Vice Vise
The package is straightforward: one vertical slide with a fixed base, one self-centering vise, and the T-nuts, bolts, and Allen key needed to attach and operate them. The fixed-base slide offers a 4" x 5" table, 3-1/8" of travel, and slots sized to accept the included T-nuts. The 2" self-centering vise has opposite threads, so it closes evenly around a part. At USD 142.04, it gives you the core components in one package. The trade-off is that the 2" jaw opening and 4" x 5" platform limit you to smaller jobs.
Meaningful trade-offs
The same dimensions define the limits. With a 4" x 5" vertical slide and only 2" of vise jaw opening, you are looking at small work. The 3-1/8" travel on the vertical slide means deeper cuts or tall workpieces may need repositioning. Because this is a manual slide, not a milling head, you are still doing the work by hand on a lathe; for heavier milling or precise pocketing, a dedicated machine is a better fit. The fixed-base design is predictable rather than adjustable for angles.
Bottom line
The RSTOOLS Lathe Vertical Milling Slide Fixed Base 4" x 5" And 2" Self Centering Vice Vise is a sensible first attachment for a small lathe if your parts fit within its 2" vise jaws and 4" x 5" slide. The self-centering vise cuts down setup time, and the fixed base keeps the design predictable. If your work routinely exceeds those dimensions, the limitations will show up quickly; if it doesn't, this compact set covers the basics.
