Drill bit Irwin 10502040 twist drill bit Ø 22 mm, 1 pc, for rotary hammer

Irwin 10502040 is a single-piece twist drill bit with a 22 mm diameter designed for use with SDS rotary hammers. The bit features a patented extra-short carbide tip and a new single-flute geometry that together improve drilling speed and dust removal. Constructed with a brazed carbide tip and a robust shank compatible with SDS rotary hammers, this drill bit is intended for making medium-diameter holes in masonry and similar materials where an impact-capable tool is required.

Advantages

The patented extra-short carbide tip concentrates up to 80% of the workload at the head, giving increased cutting speed and extended tip life. The concave cutting angles and self-centering design enable faster penetration and improved control during start-up. A single flute with approximately 28% greater capacity clears debris more efficiently by directing dust into the flute, reducing clogging and maintaining drilling performance. The brazed tip is joined at high temperature for enhanced heat resistance and durability, while the SDS-compatible shank ensures fitment to standard rotary hammers.

Suitable for

• Drilling medium-diameter holes (Ø 22 mm) in concrete and masonry
• Use with SDS rotary hammer tools for impact drilling
• Construction, renovation and professional on-site drilling tasks
• DIY projects that require durable, fast masonry drilling

Key specifications

• Diameter: 22 mm
• Design: single-piece twist drill with single flute
• Tip: extra-short brazed carbide tip with aggressive concave cutting angles
• Flute capacity: increased chip removal capacity (approx. +28%)
• Performance: up to 20% faster drilling compared with prior designs
• Compatibility: SDS rotary hammer shank fit
• Manufacturing: high-temperature brazing for improved heat resistance

How to use

Install the bit into an SDS-compatible rotary hammer according to the tool manufacturer's instructions, ensuring it is securely seated. Select the rotary hammer's impact mode for masonry drilling and start drilling with light pressure to allow the self-centering tip to establish the hole. Maintain steady, moderate force and allow the drill's percussive action to do the work; withdraw occasionally to clear debris if necessary. After drilling, remove dust from the hole before inserting anchors or fixings.

Usage recommendations

Use appropriate personal protective equipment, including eye protection, hearing protection and dust mask. Match drill speed and impact settings to the material being drilled; reduce pressure if excessive bit heating or wear is observed. For optimal life and speed, avoid side loading and use the bit primarily for impact-compatible masonry tasks. Store in a dry place to prevent corrosion.