The Brio 456R is a variation of the original 456, utilising the same proven technology with the addition of a round-cut top. Ideally suited to modern machining operations, the rebate can be machined in a single router operation, saving valuable installation time. With models to suit both inward and outward opening doors, French doors and sliding door applications, the Brio 456 and 456R feature a low profile design that reduces the depth of rebate and retains strength of the timber stile. The 456 distinctive square-cut-top makes this a classic look for traditional joinery. Both are available in non-locking and locking where extra security is required.