Irwin 10501894 Granite Drill Bit 3.0 x 70 mm

The Irwin Granite drill bit range is designed for impact and percussion drilling in very hard materials such as granite, concrete, and natural stone. It features a robust carbide tip that is thicker and harder, enabling drilling about 40% more holes than standard masonry bits. The rounded cutting edges increase durability and allow for more accurately sized holes—approximately 50% better than conventional bits. The 3.0 mm diameter and 70 mm total length (working length 40 mm) make it suitable for precision work in challenging substrates. This model, identified as PTDIRW10501894, is compatible with impact and percussion drills designed for masonry and stone drilling. To use, insert into the drill chuck, select impact or percussion mode, apply steady pressure, and let the drill do the work for clean, accurate holes.

Features

• Impact and percussion drilling in granite and stone
• Thick, hard carbide tip for durability
• Drills about 40% more holes
• Rounded cutting edges for accurate sizing
• Size 3.0 x 70mm

Technical specifications

• Diameter: 3mm
• Overall Length: 70mm
• Working Length: 40mm
• Compatibility: impact and percussion drills for masonry and stone