Twist drill bit Irwin 10502232 — 13 mm diameter, 1 pc

Irwin twist drill bit model 10502232 has a 13 mm cutting diameter and is supplied as a single unit. The bit features a helical (twist) flute geometry optimized for conventional drilling machines and portable drills. It is intended for creating round holes in compatible workpieces and is suitable for a range of light to medium drilling tasks in materials such as sheet metal, wood and plastics, depending on material thickness and drill speed.

Advantages

The twist flute design offers efficient chip evacuation and steady cutting performance, while the 13 mm diameter delivers a common hole size for many assembly and repair tasks. Manufactured by Irwin, the bit is balanced for use in hand-held and benchtop drills and provides consistent hole quality when used with appropriate feed rate and speed. The single-piece supply makes it easy to keep as a spare or replacement in a toolbox.

Suitable for

• Drilling holes in sheet metal and light gauge steel
• Woodworking tasks including pilot holes and through-holes
• Plastic components and synthetic materials
• General repair and construction where a 13 mm hole is required

Key specifications

• Cutting diameter: 13 mm
• Geometry: twist (spiral) flute
• Package quantity: 1 piece
• Compatibility: standard drill chucks suitable for 13 mm shank/bit diameter

How to use

Fit the 13 mm twist bit securely into the drill chuck and tighten according to the drill manufacturer’s instructions. Select drill speed and feed appropriate to the target material — lower speeds for metals, higher speeds for wood and plastics. Apply steady pressure without forcing; allow the drill to do the cutting and retract periodically if drilling deeper holes to clear chips. For metal work, clamp the workpiece and use a center punch to prevent walking at the start.

Usage recommendations

For sheet metal drilling, the bit is suited to high-performance use; for stainless steel, prefer HSS cobalt drill bits specifically designed for that alloy and always use an appropriate cutting coolant or lubricant to reduce heat and extend tool life. Wear suitable eye protection and secure the workpiece before drilling.