Free-Swinging Half Overlay Hinge for Push-to-Open and Handle-Less Cabinets

The Grass Tiomos Impresso is a concealed half overlay hinge designed for door arrangements where the hardware, not a spring or damper, controls every movement. It suits frameless and face-frame cabinets, and its free-swinging action makes it the right pairing for push-to-open systems and touch-latch applications.

Key Features

• Free-swinging motion means the door stays where it is placed, with no spring pull and no damping, putting all door movement in the hands of the catch or actuator.
• Half overlay, half crank arm positions two doors sharing a center partition at a partial overlay, so the arms do not collide on the shared stile.
• 110 degree opening delivers standard everyday access on both frameless and face-frame boxes.
• Toolless snap-on engagement lets the door clip to the mounted base plate without a screwdriver.
• Three-way adjustment corrects height, side, and depth after the door is hung, each axis moving up to 3mm in and 2mm out.
• 42/45mm dual bore pattern serves both Grass Tiomos boring and the wider 45mm pattern found on older or mixed-brand installations.

Where a Free-Swinging Hinge Belongs

A free-swinging hinge does not pull a door shut on its own. That is the point. It pairs with a push-to-open mechanism, a touch-latch, or a magnetic catch that does the closing work, letting the door stay open at any angle when released. Half overlay geometry places this hinge on shared-partition doors, where two doors meet on a single center stile or panel and each door covers roughly half of it. The 35mm cup bores into the back of the door, and the arm snaps to a Grass Tiomos base plate mounted to the cabinet, which is ordered separately. Plates are Grass-specific; a plate from another brand will not connect to a Tiomos arm.

Steel Build and a Dual Bore Pattern

The hinge body is steel with a nickel finish. What sets the Tiomos Impresso apart from a standard concealed hinge in a similar overlay is the 42/45mm dual bore pattern: it accepts both the Grass-native 42mm spacing and the 45mm pattern common across many production lines, which makes it a practical choice when replacing an existing hinge or working in a shop with mixed boring equipment. Maximum door thickness is 24mm, a slightly wider window than the standard 22mm, so it accommodates doors at the upper edge of the standard range without moving to a dedicated thick-door hinge.

Shops Running Handle-Less Programs and Mixed Production

This hinge fits cabinet shops running handle-less door programs where every front is integrated with push-to-open hardware, designers specifying integrated touch-latch fronts, and remodelers replacing existing Tiomos hinges in a line that already uses 42mm boring. It works on both frameless cabinets and face-frame boxes, which broadens its range across job types without swapping to a different hinge family. For doors that need a spring pull to close reliably on their own, the self-close version of this series is the better pick. For a damped, quiet close, move to the Tiomos soft-close variant.

Common Questions

Door Movement That Works With Your System, Not Against It

Specify the Tiomos Impresso free-swinging hinge when the door's closing behavior belongs to the catch or actuator, and the hinge's job is simply to get out of the way.