Twist drill bit Irwin 10502029 — diameter 1.8 cm, 1 piece

Irwin 10502029 is a single twist drill bit with a 1.8 cm diameter manufactured for general drilling tasks. This 1-piece bit is designed to work with standard drills and rotary tools to create round holes in materials such as wood and plastic, and—depending on the drill bit material and the drill used—can be applied to softer masonry and composite materials. The bit’s single-piece construction simplifies installation and replacement in standard chucks and supports straightforward, reliable drilling for a range of common jobs.

Advantages

The Irwin 10502029 combines a large 1.8 cm cutting diameter with a single-flute, fast-chip evacuation geometry that promotes efficient removal of drilling debris and reduces clogging during use. A compact head design concentrates cutting forces on the tip, improving bite and supporting steady penetration. The bit’s construction is suitable for standard drill chucks and provides consistent hole quality when matched to the appropriate drill speed and material.

Suitable for

• Drilling round holes in wood and timber
• Drilling through plastics and composite sheets
• General-purpose workshop and home improvement tasks
• Use with standard handheld drills and rotary tools

Key specifications

• Cutting diameter: 1.8 cm
• Quantity: 1 piece
• Design: single twist (single-flute) drill bit
• Compatibility: fits standard drill chucks and rotary tools
• Intended materials: wood, plastics, and similar soft materials when matched to bit material

How to use

Mount the Irwin 10502029 in a compatible drill chuck and tighten securely. Select an appropriate drill speed for the material: lower speeds for harder or thicker stock, higher speeds for softer materials. Begin drilling at a steady, controlled feed rate without excessive side pressure, allowing the bit to remove chips through its flute. Periodically withdraw the bit to clear debris when drilling deep holes. When drilling in unfamiliar materials, test on scrap material to confirm cutting performance and adjust speed or feed as needed.

Usage recommendations

Use appropriate personal protective equipment, including safety glasses and hearing protection. Match drill speed and feed to the workpiece material and the bit’s construction to prolong bit life. For masonry or very hard materials, use a purpose-made masonry bit rather than this general-purpose single twist bit.