Dongcheng Hinge Boring Bits | 16-20mm

GZ Industrial Supplies is the official distributor of Dongcheng Power Tools in Nigeria. The Dongcheng Hinge Boring Bit is a precision tool for flush-mount hinge installation on doors, cabinets, and furniture. Available in 16mm, 17mm, 18mm, and 20mm sizes, these bits deliver clean, wobble-free bore holes in wood and hard plastics perfect for carpenters, cabinetmakers, and DIY woodworkers, the Dongcheng Hinge Boring Bits are used primarily for drilling cup holes for concealed cabinet hinges. Their design supports smooth and accurate cuts, reducing splintering and ensuring a tight fit for hardware components

Professional Features

• 15° Self-Centering Tip – Prevents walking on curved surfaces.
• Spiral Flutes – Efficient chip ejection for cleaner holes.
• Depth Markings – Laser-etched guidelines for consistent depth control.
• Precision Ground Tips – Laser-cut edges for splinter-free entry and exit holes.
• 1/4" Hex Shank – Fits all Dongcheng and major-brand drill chucks.

Technical Specifications of Dongcheng Hinge Boring Bits

• Type: Hinge Boring Bit
• Available Sizes: 16mm | 17mm | 18mm | 20mm
• Material: High-grade alloy steel
• Shank: 1/4" Hex
• Compatibility: Wood, MDF, Plywood, Hard Plastics

Frequently Asked Questions (FAQ)

Q: What hinge types are these bits designed for?

A: Ideal for:

• European cup hinges (16/17mm)
• Face-frame hinges (18/20mm)
• Cabinet door adjustment plates

Q: Can I use these with a cordless drill?

A: Yes—recommended 800-1,200 RPM for cleanest cuts.

Q: How many holes per bit?

A: 300+ holes in softwoods, 150+ in hardwoods with proper use.

Contact us. We have products available at all GZ Industrial Supplies stores nationwide.