TCT Through-Hole Boring Bits

TCT through-hole boring bits for furniture and panel drilling, featuring a sharp V-point carbide cutting tip for accurate positioning and clean penetration. Available in left-hand and right-hand rotation, with standard and custom diameters for multi-spindle boring machines and CNC woodworking equipment.

TCT Through-Hole Boring Bits

Persistools TCT through-hole boring bits are precision woodworking drill bits designed for drilling clean through holes in furniture panels and engineered wood materials.

They are widely used on multi-spindle boring machines, CNC drilling machines, and furniture production lines for applications such as:

Furniture hardware holes
Connector holes
Dowel preparation
Panel alignment holes
Existing hole enlargement
Through drilling in board materials

The cutting head uses brazed tungsten carbide and is ground into a sharp V-point geometry, allowing the drill to enter the workpiece accurately and penetrate through the panel efficiently.

Sharp V-Point Cutting Geometry

The pointed cutting tip helps establish the drilling position before the full cutting edges engage.

This geometry provides several advantages:

Accurate hole positioning
Fast penetration
Reduced drill wandering
Clean entry into panel materials
Stable through-hole drilling

For furniture production, this is particularly useful when drilling small and medium-diameter holes repeatedly across laminated or engineered wood panels.

TCT Cutting Head

The drill body uses a steel shank with brazed tungsten carbide cutting sections.

This construction provides a practical combination of:

High edge wear resistance
Good impact tolerance
Stable cutting performance
Reasonable manufacturing cost
Suitability for repeated panel drilling

The carbide cutting edge is suitable for common furniture materials such as:

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

Left-Hand and Right-Hand Rotation

Furniture boring machines commonly use both left-hand and right-hand rotating spindles.

For this reason, through-hole boring bits are supplied in:

Left-Hand Rotation — commonly identified in red
Right-Hand Rotation — commonly identified in black

The rotation direction should be matched to the machine spindle before use.

Standard and Custom Sizes

Through-hole boring bits are available in a wide range of standard furniture-drilling sizes.

Custom dimensions can also be manufactured according to:

Hole diameter
Working length
Overall length
Shank diameter
Machine spindle
Rotation direction
Cutting geometry
Customer drawing or sample

This makes the product suitable for both standard furniture boring systems and special-purpose drilling applications.

Drill Diameter	Shank Diameter	Rotation	Cutting Material	Tip Geometry	Typical Application
Ø3 mm	10 mm	LH / RH	TCT	V-Point	Small furniture holes
Ø4 mm	10 mm	LH / RH	TCT	V-Point	Hardware positioning
Ø5 mm	10 mm	LH / RH	TCT	V-Point	Standard connector holes
Ø6 mm	10 mm	LH / RH	TCT	V-Point	General panel drilling
Ø8 mm	10 mm	LH / RH	TCT	V-Point	Dowel / Through holes
Ø10 mm	10 mm	LH / RH	TCT	V-Point	Larger furniture holes
Ø12 mm	10 mm	LH / RH	TCT	V-Point	Panel machining
Custom	Custom	LH / RH	TCT	Custom	Special machine applications

Product Type: Through-Hole Boring Bit
Cutting Material: Tungsten Carbide Tipped (TCT)
Body / Shank: Precision Steel
Tip Geometry: Sharp V-Point
Rotation: Left-Hand / Right-Hand
Color Identification: Red for LH / Black for RH
Application: Through Drilling / Hole Enlargement / Furniture Panel Machining
Processed Materials: MDF / Particleboard / Plywood / Laminated Panels / Solid Wood
Customization: Diameter, working length, overall length, shank size, rotation, and cutting geometry available on request.

What are TCT through-hole boring bits used for?

They are used to drill completely through furniture panels and wood-based boards, including holes for connectors, dowels, fittings, and other hardware applications.

What is the purpose of the V-shaped cutting tip?

The V-point helps locate the drilling position accurately and improves penetration into the panel before the full cutting edges engage.

What is the difference between left-hand and right-hand boring bits?

The difference is the rotation direction. Furniture boring machines may use both left-hand and right-hand spindles, so the drill bit must match the spindle direction. Red is commonly used for left-hand bits and black for right-hand bits.

Can you manufacture custom through-hole boring bits?

Yes. Diameter, length, shank size, rotation direction, cutting geometry, and other dimensions can be customized according to the machine, drawing, or sample.

If the above questions do not solve your doubts, please contact us through email or phone as well!

Persistools is fully committed to pursuing maximum efficiency in customer service and delivering premium customer experience. Whether you have pre-sales questions or encounter after-sales issues, you will receive our swift reply at all times. Our team always stays positive and dedicated to solving problems effectively.