Twist drill bit Irwin 10502230 — diameter 11 mm, 1 pc

Irwin 10502230 is a single 11.0 mm twist drill bit designed for general-purpose drilling with electric or cordless drills. The bit features standard twist geometry that facilitates cutting and chip evacuation for routine jobs in metal, wood and plastic. Supplied as a single piece with a triangle shank, this 11 mm drill bit is intended for tasks that require a precise hole diameter and compatibility with drill chucks that accept triangular shanks.

Advantages

The twist design ensures consistent cutting action and effective chip removal for cleaner holes. A triangle shank improves grip in compatible chucks and reduces slippage during use. With a length of 142 mm, the bit provides sufficient reach for many common drilling situations. The bit is suitable for sheet metal and general metalwork while also performing well in wood and plastic applications.

Suitable for

• Drilling 11 mm clearance or pilot holes in metal plates and structural components
• Creating holes in wooden workpieces for joinery or fittings
• Drilling through plastic components and panels
• Routine sheet metal drilling where a general-purpose twist bit is acceptable

Key specifications

• Drill type: twist drill bit
• Diameter: 11.0 mm
• Overall length: 142 mm
• Shank type: triangle shank
• Supply quantity: 1 piece
• Recommended materials: metal, sheet metal, wood, plastic; suitable for stainless steel with appropriate coolant and technique

How to use

Secure the triangle shank firmly in a compatible drill chuck or holder before operation. Select a suitable drilling speed for the material: lower speeds for metals and stainless steel, medium to higher speeds for wood and plastics. For metal and stainless steel drilling, apply a suitable cutting fluid to reduce heat and prolong tool life. Use steady pressure and allow the bit to clear chips periodically. After drilling, deburr the hole as required for the application.

Usage recommendations

When drilling stainless steel or other hard metals, use coolant and reduced speed to avoid overheating. For sheet metal, support the workpiece to minimize vibration and ensure a clean hole. Replace the bit if wear or chipping appears to maintain hole quality and operator safety.