Drill Bit Set Irwin for Glass 5 pcs (4, 5, 6, 8, 10 mm) IRW10507912

Irwin drill bit set for glass, 5 pieces (4, 5, 6, 8, 10 mm) is a purpose-made set for drilling precise round holes in brittle materials such as tempered and annealed glass, ceramic tiles and porcelain. The set includes five diameters commonly required for fittings, sanitary fixtures and decorative hardware. These bits are intended for use with low-speed drilling and the application of coolant to control heat and reduce cracking risk during penetration of glass and glazed surfaces.

Advantages

The drill bits are engineered to provide clean, accurate holes with minimal chipping when used with correct technique. The set covers a practical range of diameters for installation and repair tasks, reducing the need to change tools. Hardened cutting edges and a geometry suited to glass and ceramics improve cutting efficiency and extend usable life under proper operating conditions. The compact set is convenient to store and select by diameter.

Suitable for

• Drilling holes in tempered and annealed glass
• Creating openings in ceramic tiles and porcelain
• Installing glass hardware, handles and fittings
• Sanitary installation work such as mirror and shelf mounting
• Decorative and repair applications requiring precise round holes

Key specifications

• Number of pieces: 5
• Included diameters: 4 mm, 5 mm, 6 mm, 8 mm, 10 mm
• Intended material: glass, glazed ceramics, porcelain
• Recommended drilling method: low-speed drilling with coolant
• Suitable for handheld and drill-press use where speed and feed can be controlled

How to use

Mark the drilling position and secure the workpiece to prevent movement. Start with a low spindle speed and apply steady, light pressure; allow the bit to do the cutting rather than forcing it. Use a continuous supply of coolant or water to keep the cutting area cool and to flush away debris. If possible, begin drilling from both sides for thicker glass to reduce the chance of chipping at the exit. Periodically withdraw the bit to clear debris and reapply coolant.

Usage recommendations

Use appropriate personal protective equipment including eye protection and gloves. Avoid high speeds and excessive pressure. For best results on tempered glass or high-value pieces, test technique on a scrap piece and consider professional assistance when working with large or structural glass elements.