Drill bit Irwin 10502392 — Twist drill bit, 7.5 mm, 1 pc

Irwin 10502392 is a single 7.5 mm twist drill bit designed for general-purpose drilling with handheld drills and drill presses. Ground to DIN 338 standards, this precision-ground bit features a cylindrical shank and a universal 118° point suitable for drilling plastic, soft metals and wood. The ground flute and precision cutting edges provide fast chip evacuation and a clean hole finish, making the bit suitable for workshop replacement or project use where a 7.5 mm diameter hole is required.

Advantages

The drill bit is manufactured to DIN 338 standards with ground quality and precision-ground cutting edges that deliver consistent performance and accurate hole diameter. Its universal 118° point shape reduces walking at the start of drilling, while the ground flute enables efficient chip removal and stable drilling. The cylindrical shank ensures compatibility with standard chucks and easy replacement.

Suitable for

• Drilling 7.5 mm holes in plastic components
• Creating holes in soft metals such as aluminium and thin steel
• Woodworking tasks requiring a clean, precise 7.5 mm hole
• General workshop repairs and equipment maintenance

Key specifications

• Type: Twist drill bit
• Diameter: 7.5 mm
• Overall length: 69 mm
• Point angle: 118° (universal)
• Shank type: Cylindrical
• Flute: Ground flute for fast chip removal
• Cutting edge: Precision ground
• Quantity: 1 piece

How to use

Secure the Irwin 7.5 mm twist drill bit in a compatible drill chuck ensuring the shank is seated firmly. Select an appropriate spindle speed for the material: lower speeds for soft metals and higher speeds for plastics and wood, and apply steady feed pressure. Use cutting lubricant when drilling metals to prolong bit life and improve finish. Maintain the drill at a perpendicular angle to the workpiece unless an angled hole is required, and clear chips regularly to avoid clogging the flute.

Usage recommendations

For best results, start with a small pilot hole when drilling into harder metals, use cutting fluid on metal applications, and clamp the workpiece securely to prevent movement. Inspect the bit before use for wear or damage and replace if the cutting edges are dull to maintain hole quality and reduce the risk of breakage.