Fensterfräser — 8/12 mm handle · 12 mm size · 1 piece Key benefits Precise profiling: 12 mm cutter size gives consistent, repeatable cuts for window rebates and small profiles. Dual-shank compatibility: 8/12 mm handle lets you fit the cutter to routers or collets that accept either 8 mm or 12 mm shanks. Simple, ready-to-use unit: supplied as a single piece so you can add it to your toolkit immediately. What it is and how it solves problems Function: a Fensterfräser (window router bit) designed for cutting or profiling operations in window and frame work. It streamlines shaping and rebate tasks that would otherwise be slow or imprecise with hand tools. Compatibility: the 8/12 mm handle specification ensures compatibility with common router setups, reducing the need for adapters. Size clarity: the tool’s overall size is 12 mm, with the handle thickness also 12 mm as specified, so you know the exact dimensions for setup and clearance. Important attributes Type: Fensterfräser (window router bit) Shank/handle: 8/12 mm Cutter size / overall size: 12 mm Quantity: 1 piece Use with routers/collets that accept 8 mm or 12 mm shanks Practical use scenarios Installing or repairing window frames: cut accurate rebates and profiles to fit glazing beads or weatherstrips with consistent depth and width. Joinery and trim work: produce matching profiles on frame components for a clean fit and professional finish. On-site carpentry adjustments: quickly re-profile or trim parts to tolerance when fitting windows or doors during installation. Purchase details Single unit: one Fensterfräser included per order. Verify your router’s shank capacity (8 mm or 12 mm) before use. If you need any additional dimensions or compatibility checks for your specific router model, measure the collet or provide the router specification to confirm fit.