TCT Hinge Boring Bits

TCT Hinge Boring Bits

Persistools TCT hinge boring bits are precision woodworking drill bits designed for machining recessed holes used to install concealed hinges in cabinet doors, wardrobes, furniture panels, and other panel products.

Unlike standard through-hole or blind-hole boring bits, hinge boring bits use a larger cutting head to produce the wide recessed cavity required for the hinge cup.

The drilled recess allows the hinge body to sit inside the door panel so that the hardware can close properly and remain compact after installation.

Typical applications include:

• Cabinet door hinges
• Wardrobe hinges
• Kitchen furniture
• Office furniture
• Panel furniture
• Concealed hinge installation
• Furniture hardware recesses

Large-Diameter Cutting Head

Hinge boring bits typically use a larger cutting diameter than conventional furniture boring drills.

The cutter head is designed to remove material efficiently while maintaining accurate hole diameter and controlled drilling depth.

A correctly ground hinge boring bit helps provide:

• Accurate hinge cup diameter
• Controlled recess depth
• Clean hole edges
• Reduced surface chipping
• Smooth hole bottom
• Consistent hardware fit

This is important because hinge installation requires both dimensional accuracy and repeatability across large production batches.

TCT Cutting Edges

The cutter body is manufactured from steel, while tungsten carbide cutting tips are brazed onto the working edges.

Carbide is concentrated only in the cutting areas where wear resistance is required.

This construction provides a practical balance of:

• High wear resistance
• Sharp cutting performance
• Steel-body toughness
• Lower manufacturing cost than solid carbide
• Reliable performance in furniture panel drilling

The cutting edges are suitable for common furniture materials including:

• MDF
• Particleboard
• Plywood
• Melamine-faced panels
• Laminated boards
• Solid wood
• Engineered wood

Standard Hinge Sizes

Hinge boring bits are available in many standard diameters according to common furniture hardware systems.

Typical sizes include:

• Ø15 mm
• Ø20 mm
• Ø26 mm
• Ø30 mm
• Ø35 mm
• Ø40 mm
• Custom sizes

Among these, Ø35 mm is one of the most common diameters used for concealed cabinet hinge cups.

Different diameters can be supplied according to hinge design and furniture hardware requirements.

Left-Hand and Right-Hand Rotation

As part of the furniture boring system, hinge boring bits can be supplied in:

• Left-Hand Rotation
• Right-Hand Rotation

The correct rotation direction should be selected according to the machine spindle and boring-head arrangement.

Color coding can also be supplied according to customer or machine requirements.

Standard and Custom Designs

Persistools can manufacture hinge boring bits according to:

• Cutting diameter
• Drilling depth
• Shank diameter
• Overall length
• Rotation direction
• Carbide geometry
• Center point design
• Machine model
• Hinge system
• Customer drawing or sample

This makes them suitable for both common furniture boring machines and special hinge installation systems.