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The Grass Vionaro Front Drilling Jig is a dedicated positioning tool that locates and guides the drilling of hook dowel holes in drawer fronts for the Vionaro drawer system, so fronts mount accurately and adjust correctly from the first install.
Installing a drawer front on a Vionaro system starts with pressing hook dowels into the front panel so it can hang on the front fixing brackets before being locked down. Getting those dowel holes in the right location — relative to the top edge of the front and its horizontal center — is what the front adjustment range depends on. Drill them in the wrong spot and the front sits outside the system's built-in correction range, requiring re-drilling or a new front. This jig registers to the front panel and guides the bit to the correct position, removing the measurement step that introduces most of the error in manual layouts.
This jig is made for the Vionaro drawer system from Grass America. Vionaro is a metal drawer system with double-walled steel side profiles, and its front fixing hardware — hook dowels, brackets, and cover caps — is engineered specifically for the platform. Drilling templates and jigs from other Grass programs or from other drawer system brands will not produce the correct hole pattern for Vionaro front fixings. Use this jig only with Vionaro-specified front fixing components.
Cabinet shops building multiple Vionaro drawer runs see the most return from a dedicated drilling jig — the repeatability pays off when the same front pattern needs to appear across a kitchen or closet worth of drawers. Installers working on a smaller scope, such as a single vanity or desk with Vionaro drawers, benefit from the accuracy guarantee: one correct reference replaces the risk of a mis-drilled front that delays the job. Designers specifying Vionaro for a project can call out this jig as part of the installation package to ensure the front alignment the system is capable of delivering.
It is not mechanically required — hook dowel holes can be laid out manually — but the jig ensures the holes land inside Vionaro's front adjustment range. Manual layout risks positioning errors that place the front outside the system's correction window.
No. This jig is specific to the Vionaro system. Nova Pro Scala and Zargen use different front fixing geometries and require their own installation tooling.
The source data does not state a front thickness range for this jig. Check the Grass Vionaro installation documentation for the front panel thickness the system supports before ordering.
Yes — the jig is a reusable positioning tool, not a consumable. One jig handles as many fronts as the job requires.
Accurate hook dowel placement is the foundation of a well-hung Vionaro drawer front — get the drilling right and the system's built-in front adjustment does the rest of the alignment work for you.
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