CMT Hinge Boring Bit 317.350.11 1-3/8 Inch Cup Tool (2-17/64 Inch Length 10x26mm Shank Right Hand Rotation Carbide Tipped Cabinetry Blind Holes)

CMT 317.350.11 35mm (1-3/8") Right-Hand Carbide-Tipped European Hinge Boring Bit

The CMT 317.350.11 35mm (1-3/8-inch) right-hand hinge boring bit cuts precision flat-bottom blind holes for European concealed cabinet hinges, bores clean cup recesses in melamine-faced panels, and mills splinter-free entry perimeters through high-pressure laminates without chipping fragile veneers. Measuring 2-17/64 inches (57.5 mm) in overall length with a 10x26 mm cylindrical drive shank and right-hand rotation, this industrial boring tool incorporates two precision-balanced micrograin carbide cutting edges, a centering point, and two negatively ground scoring spurs for tearout-free boring. Outfitted with a thermally bonded black PTFE non-stick coating that reduces friction and prevents resin accumulation during high-cycle fabrication, it provides custom cabinet shops, architectural millwork facilities, and furniture manufacturers with chatter-free performance across automated boring machines and CNC router units.

Best Used For:

• Concealed European Hinge Cup Boring: Milling 35mm (1-3/8-inch) flat-bottom blind pockets in cabinet doors for Blum, Salice, Grass, and Hettich concealed hinge hardware.
• Double-Sided Melamine and Laminate Fabrication: Boring chip-free hinge pockets through high-pressure laminate (HPL), thermofoil, paper foils, and pre-finished plywood.
• CNC and Line-Boring Machine Production: Running high-speed drilling cycles in multi-spindle boring blocks, CNC machining centers, and automatic point-to-point drilling machines.

Key Performance & Safety Features

• Micrograin Carbide Cutting Geometry: Premium industrial carbide tips maintain razor-sharp cutting edges through abrasive composite cores, MDF, and particleboard.
• Negative-Ground Scoring Spurs: Twin negatively angled spurs cleanly sever surface wood fibers and laminate surfaces before the main cutters engage to eliminate edge tearout.
• PTFE Non-Stick Thermal Coating: Baked-on fluoropolymer coating repels pitch, sawdust gumming, and friction heat to prevent workpiece burning.
• Precision Centering Point: Ground center point ensures accurate hole positioning and prevents lateral tool deflection during rapid spindle plunge cycles.
• High-Strength Fatigue-Resistant Steel Body: Precision-machined solid steel core withstands high rotational speeds and continuous industrial feed rates without bending.
• Standard 10x26mm Drive Shank: Ground cylindrical shank with clamping flat fits securely into quick-change chucks and multi-spindle drilling heads.

What's Included

• (1) CMT 317.350.11 35mm (1-3/8") Right-Hand Carbide-Tipped Hinge Boring Bit

Technical Specifications

Pro-Tip: When boring 35mm hinge cups into delicate melamine or thin wood veneers, ensure your machine spindle speed is dialed between 3,000 and 4,500 RPM with a consistent plunge rate; allowing the negative-ground spurs to score the surface first prevents rim chip-out and guarantees flush hinge seating.