Hammer Drill Bit Hikoki 20 x 520 mm SDS‑Max 754310

Hikoki hammer drill bit 20 x 520 mm SDS‑Max 754310 is a long percussion drill designed for heavy-duty drilling in concrete, masonry and natural stone. The 520 mm overall length and 20 mm diameter allow deep-hole drilling while the SDS‑Max shank provides secure, tool-specific connection with compatible rotary hammers. Fluted geometry supports chip removal and helps maintain drilling speed in reinforced and unreinforced substrates.

Advantages

The drill bit offers consistent percussion transmission and a durable carbide tip for prolonged service life when used in hard building materials. Its long length reduces the need for extension accessories when drilling deep anchor holes or through thick elements. The SDS‑Max connection ensures fast insertion and removal while minimizing play between bit and tool, contributing to stable drilling and improved accuracy.

Suitable for

• Deep anchor and dowel hole drilling in concrete and masonry
• Service, installation and renovation tasks requiring long-reach drilling
• Use with SDS‑Max rotary hammers for construction and civil works
• Drilling through stone and similar dense substrates

When it may not be suitable

This SDS‑Max hammer drill bit is not intended for use with standard drill chucks or non‑SDS‑Max tools; compatibility is limited to rotary hammers with an SDS‑Max interface. It is optimized for percussion (hammer) drilling in hard materials, so it is not the best choice for precision wood drilling, metalworking, or masonry finishing that requires smooth, non‑percussive holes.

Key specifications

• Diameter: 20 mm
• Overall length: 520 mm
• Shank type: SDS‑Max
• Tip material: carbide tip suited for masonry and concrete
• Flute design: spiral flutes for chip removal

How to use

Select an SDS‑Max compatible rotary hammer and ensure the tool is in the proper hammering mode for percussion drilling. Secure the bit in the tool’s chuck until it locks. Start drilling at low speed to position the tip, then apply steady forward pressure with the drill in hammer mode; allow the tool to perform the work rather than forcing the bit. Periodically withdraw the bit to clear debris and avoid overheating; when drilling deep holes, clear dust frequently to maintain efficient chip evacuation. Wear appropriate personal protective equipment such as eye protection, hearing protection and a dust mask or extractor when working in confined or dusty environments.

What to consider before purchase

• Confirm your rotary hammer supports SDS‑Max shanks
• Verify required hole diameter and depth for anchors or fixtures
• Consider bit life and carbide tip suitability for reinforced concrete
• Assess whether a different length or diameter would be more appropriate for your tasks

Usage recommendations

For best results use the bit with a rotary hammer that matches its SDS‑Max interface, maintain steady drilling pressure, and clear debris regularly. When working in reinforced concrete, reduce speed and increase extraction intervals to prolong tip life. Use dust extraction where possible to improve visibility and reduce wear.