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The Sugatsune AR3-K400 is a 15-3/4 inch full-extension side-mount ball bearing drawer slide machined from aluminum, rated 20 lb per pair, with a hold-out detent that keeps the drawer stationary at full open until intentionally pushed closed.
A hold-out detent is a mechanical catch that holds the drawer at full open until you press it closed — there is no spring pull and no damper, just a positive stop in the open position. That behavior is valuable wherever you need both hands free while working from the open drawer: a jewelry or watchmaker's parts tray, a light-duty display case, a flatware insert in a furniture piece, or a small utility pull-out in a built-in desk. The slide stays where you put it so the drawer does not creep back on an unlevel surface or drift shut mid-task. Push it closed when finished and it latches in place at the cabinet face.
The AR3-K400 is built from aluminum, giving the slide a natural aluminum finish that reads as a clean, bright tone alongside light-colored interiors. Aluminum is lighter than zinc-finished steel slides in the same length class, which matters when the drawer box itself is lightweight material — the slide does not add unnecessary mass. For indoor decorative cabinetry and furniture applications where the slide may be partially visible through an open drawer, the aluminum finish is more refined than a standard zinc plate. This is an indoor slide; it is not rated or treated for wet, marine, or exterior environments.
The 20 lb per pair rating places this slide in the light-duty class, which suits shallow decorative drawers, display inserts, small parts organizers, and furniture pull-outs carrying light contents. It is not the slide for a kitchen utility drawer loaded with tools or a file drawer carrying hanging folders. Pair it with a drawer box built for 1/2 inch side clearance per side — the standard for this mount position — and size the box depth to the 15-3/4 inch slide length. Because the design is non-handed, both slides in a pair are the same part; one per side, two per drawer.
No. The hold-out detent is a mechanical catch that holds the drawer open and releases with a push — it has no spring and no damper. It does not close the drawer for you, and it does not slow the closing motion. This is a standard-motion slide in the closing direction.
Build the drawer box 1 inch narrower than the cabinet opening to leave the standard 1/2 inch of clearance for each slide.
Side-mount slides need support at the rear of the cabinet in face-frame construction. Confirm that the matching rear mounting bracket for the AR3-K series is available and add it to the order for face-frame installs.
No. The AR3-K400 is non-handed, so both slides in the pair are identical. Order one per side of the drawer.
Match the drawer box depth to the 15-3/4 inch slide length. Confirm the minimum installation depth with the cabinet interior measurement before cutting the box.
When the job calls for a light-duty drawer that stays open on command, the Sugatsune AR3-K400 delivers full access and hands-free hold in an aluminum build that keeps weight down and looks at home in refined furniture cabinetry.