Diamond Glass Drill Bits
Professional Diamond Core Drill Bits for Glass Processing
Glass drilling requires a cutting tool that combines precision, cutting efficiency and stable performance. Conventional drill bits cannot cut glass effectively and may cause excessive chipping, cracking or breakage.
Sagertec glass drill bits use a diamond cutting rim specifically developed for glass processing. During operation, the diamond layer gradually removes the glass material around the circumference of the hole, producing a round opening while minimizing unnecessary contact with the center section.
The products are suitable for glass processing factories, door and window manufacturers, furniture glass producers, shower enclosure manufacturers and other companies requiring reliable glass hole drilling.
Key Features
Thin Diamond Cutting Rim
The carefully controlled cutting-edge thickness helps reduce drilling resistance and enables more precise hole formation. The diamond section is designed to maintain sufficient working height while keeping the cutting edge relatively thin.
Efficient Glass Removal
The diamond cutting surface provides effective grinding and material removal during drilling. When used with appropriate machine settings and cooling water, it helps achieve stable drilling performance and consistent hole quality.
Reduced Edge Chipping
A suitable diamond specification, stable machine feed and adequate cooling help reduce chipping around the hole edges. For higher-quality results, drilling from both sides of the glass is recommended where the machine configuration permits.
Stable Metal Body
The drill body is designed to support the diamond cutting section during continuous rotation. Correct concentricity helps reduce vibration and supports more accurate hole positioning.
Different Sizes and Connections
Glass drill bits can be supplied in different hole diameters, working lengths and connection configurations. Customized specifications are available according to the drilling machine and application requirements.
Applications
Sagertec diamond glass drill bits can be used for drilling holes in:
- Architectural flat glass
- Temperable glass before tempering
- Mirrors
- Laminated glass
- Furniture glass
- Shower door glass
- Glass partitions
- Glass railings and balustrades
- Appliance glass
- Decorative glass products
Typical holes include openings for handles, hinges, fittings, connectors, water taps, cables and other hardware components.
Suitable Glass Drilling Equipment
Depending on the selected connection and specification, the drill bits can be used with:
- Manual glass drilling machines
- Semi-automatic glass drilling machines
- Automatic double-sided glass drilling machines
- CNC glass drilling and processing centers
- Combined glass drilling and milling machines
The machine spindle connection, rotation speed, feed rate and cooling method should be confirmed before selecting the drill bit.
Wet Drilling and Cooling
Continuous water cooling is recommended during glass drilling. Cooling water helps control the temperature of the diamond cutting rim, removes glass powder from the drilling area and reduces the risk of overheating.
Insufficient cooling may shorten tool life, reduce cutting efficiency and increase the possibility of edge chipping or glass breakage. The cooling water should reach the cutting area evenly throughout the drilling process.
Double-Sided Glass Drilling
For applications requiring better edge quality, the glass can be drilled from both sides. The upper and lower drill bits work toward each other and complete the hole near the center of the glass thickness.
Compared with drilling completely through the glass from one side, double-sided drilling can help reduce breakout and large chips around the exit edge. Correct alignment of the upper and lower spindles is essential for achieving a clean and consistent hole.
Available Options
The following specifications can be selected according to the application:
- Drill bit diameter
- Diamond cutting-rim height
- Cutting-edge thickness
- Overall tool length
- Working depth
- Diamond grit specification
- Drill body configuration
- Spindle connection or thread type
- Upper or lower drilling position
- Specification for single-sided or double-sided drilling
Please provide the required hole diameter, glass thickness, machine model and spindle connection when requesting a quotation.
Selecting the Correct Glass Drill Bit
The appropriate drill bit should be selected based on more than the required hole diameter. The following factors should also be considered:
- Glass type and thickness
- Required hole-edge quality
- Single-sided or double-sided drilling
- Machine spindle type
- Spindle speed and feed rate
- Cooling-water supply
- Expected production volume
- Required tool life and cutting efficiency
Sagertec can recommend a suitable drill bit specification based on the customer’s glass product and drilling equipment.
Operating Recommendations
For reliable drilling results:
- Confirm that the drill bit matches the machine spindle.
- Check spindle alignment and drill-bit concentricity.
- Use sufficient and continuous cooling water.
- Avoid excessive feed pressure.
- Select an appropriate rotation speed for the drill diameter.
- Make sure the glass is supported securely during drilling.
- Remove glass particles and inspect the cutting rim regularly.
- Replace the drill bit when the cutting rim is excessively worn or damaged.
Actual operating parameters should be adjusted according to the glass type, thickness, drill diameter, machine condition and required finish.
Why Choose Sagertec Glass Drill Bits?
Sagertec supplies glass processing machinery, tools and production solutions for customers in international markets. Our glass drill bits can be selected according to the customer’s equipment, glass specifications and production requirements.
We focus on practical product matching instead of supplying a single standard drill bit for every application. Different configurations are available for glass factories, machinery manufacturers, distributors and industrial users.
Contact us with your required drilling diameter, glass thickness, machine model and spindle details to receive a suitable product recommendation and quotation.
Frequently Asked Questions
1. What materials can these drill bits process?
They are primarily designed for drilling glass and mirror products. Suitability for a particular laminated, coated or specially processed glass should be confirmed according to the glass structure and drilling method.
2. Can the drill bits be used for tempered glass?
Holes must normally be drilled before the glass is thermally tempered. Fully tempered glass cannot normally be drilled or cut afterward because mechanical processing may cause it to break.
3. Is water cooling required?
Water cooling is strongly recommended. It cools the diamond cutting rim, removes glass powder and supports stable drilling quality and tool life.
4. Can you supply customized diameters?
Yes. Different diameters, lengths, diamond-rim specifications and connection types can be supplied according to the drilling machine and glass-processing requirements.
5. What information is required for a quotation?
Please provide the required hole diameter, glass thickness range, drilling-machine model, spindle connection, single-sided or double-sided drilling method and estimated order quantity.
6. Why does the edge of the hole chip during drilling?
Possible causes include excessive feed pressure, insufficient cooling water, unsuitable spindle speed, worn drill bits, spindle misalignment or drilling completely through the glass from one side.
7. How can drill-bit service life be improved?
Use adequate cooling water, correct machine parameters and stable feeding. Avoid excessive pressure, spindle vibration and dry operation. The drill bit should also be matched correctly to the glass type and hole diameter.
Call to Action
Looking for Diamond Glass Drill Bits?
Send us your required hole diameter, glass thickness, machine model and spindle connection. Our team will recommend a suitable glass drill bit specification for your application
