Twist drill bit Irwin 10501980 — diameter 10 mm, for rotary hammer, 1 pc

Irwin 10501980 is a single-piece twist drill bit with a 10 mm diameter designed for use with rotary hammers and SDS rotary drill systems. The bit features a patented extra-short carbide tip and a new single-flute geometry that together enable faster, cleaner drilling in concrete and masonry. Supplied as a single unit, this 10 mm drill bit is intended for routine hole-making tasks where controlled centring and efficient dust evacuation are required.

Advantages

The patented extra-short carbide tip takes the majority of the workload, improving durability and maintaining cutting speed. Its design clears drilling dust directly into the flute to reduce clogging and includes self-centring properties for easier control. A stronger concave cutting angle offers more aggressive cutting performance, delivering up to 20% faster drilling while preserving tip life. The tip is brazed at very high temperature for a robust bond, and the single-flute profile increases waste removal capacity by approximately 28% for more efficient drilling.

Suitable for

• Drilling 10 mm holes in concrete and masonry
• Installing anchors, plugs and fixings
• Routine construction and renovation hole-making
• Work with SDS rotary hammers on medium to hard substrates

Key specifications

• Type: single-piece twist drill bit with carbide tip
• Diameter: 10 mm
• Overall length: 210 mm
• Tip: extra-short carbide, brazed at high temperature
• Flute: single-flute design for improved waste evacuation
• Compatibility: fits SDS rotary hammer systems
• Suitable materials: concrete, masonry
• Supply quantity: 1 piece

How to use

Fit the drill bit securely into the SDS chuck of a compatible rotary hammer. Mark the drilling point and use the drill’s auxiliary handle and steady pressure to maintain alignment; the self-centring tip assists with initial positioning. Use hammer mode when penetrating concrete or masonry and allow the bit’s cutting geometry to remove material with minimal forcing. Periodically retract the bit to clear dust from the hole and flute, and avoid overheating by permitting short cooling intervals during extended drilling.

Usage recommendations

For best results, use the Irwin 10 mm twist drill bit with an SDS rotary hammer at recommended hammer speed for the substrate. Apply moderate feed pressure, keep the bit axis straight, and clear debris frequently. Replace the bit if the carbide tip shows significant wear or if drilling performance drops to maintain hole quality and operator safety.