Adjustable Circular Glass Cutter Compass Tool – Hole Opener

Cut Perfect Circles in Glass Every Time

The Circular Glass Cutter Compass Gauge is a precision-engineered, alloy-built tool designed for DIY enthusiasts, glaziers, and craftspeople who need clean, accurate circular cuts in glass. Whether you're creating custom window panes, decorative glass panels, lamp shades, or craft projects, this adjustable circular cutter delivers professional results with ease.

Made in Mainland China.

Key Features

• Adjustable Radius: Easily set your desired circle size with the sliding compass arm — cuts a wide range of circle diameters to suit various projects.
• Alloy Construction: Built from durable alloy materials for long-lasting performance and resistance to wear during repeated use.
• Suction Cup Center Pivot: The central suction cup anchors firmly to the glass surface, keeping the cutter stable for smooth, accurate scoring.
• Tungsten Carbide Cutting Wheel: Produces clean, precise score lines on flat glass, ensuring neat breaks with minimal chipping.
• Compass Gauge Design: Intuitive compass-style operation makes it easy to set, lock, and cut your chosen circle size quickly.
• Non-Electrified: Fully manual tool — no power source needed, making it safe and convenient to use anywhere.
• Versatile Use: Ideal for cutting holes and circles in window glass, mirror glass, decorative glass tiles, and craft glass sheets.

What's in the Box

• 1x Circular Glass Cutter Compass Tool (Model: M10407A/B)

Perfect For

• DIY home improvement projects
• Glass art and craft work
• Window and door glass cutting
• Lamp shade and light fixture glass fabrication
• Professional glaziers and glass workshops

Safety Tip

Always wear protective gloves and safety glasses when cutting glass. Work on a stable, flat surface and follow glass-handling best practices. For safe tool use guidance, visit OSHA's Hand & Power Tools Safety Resource.

Related Tools You May Like

• 1/4" Hex Wire Twister Drill Attachment – Rebar Tie Wire Tool
• 1/4" & 3/8" to M4–M10 Thread Conversion Screw Mount Adapter

Learn more: Glass cutter

Frequently Asked Questions

Q: What size circles can this circular glass cutter cut?

A: The adjustable compass arm allows you to set a wide range of circle diameters. Slide the arm along the guide rail and lock it at your desired radius to cut everything from small porthole-style circles to larger decorative disc shapes in flat glass.

Q: Is this glass cutter suitable for mirrors as well as window glass?

A: Yes! The tungsten carbide cutting wheel scores cleanly on standard flat glass, window glass, and mirror glass. It is designed for use on flat glass surfaces — it is not intended for tempered, laminated, or safety glass.

Q: How does the suction cup anchor work?

A: Simply press the central suction cup firmly onto the clean, flat glass surface at your desired center point. The suction holds the pivot in place while you rotate the cutter arm around it, ensuring a stable, consistent score line throughout the cut.

Q: Do I need any special equipment to complete the cut after scoring?

A: After scoring, you can use a glass running plier or gently tap along the score line from underneath to propagate the break cleanly. No power tools are required — this is a fully manual process.