Drill bit JOBIextra MAX SDS 36 mm x 600 mm, cross-tip, model 83660

The JOBIextra MAX SDS drill bit 36 mm x 600 mm with cross-tip (model 83660) is a long, large-diameter SDS bit designed for deep drilling in masonry, concrete and natural stone when using SDS rotary hammers. Its 36 mm diameter and 600 mm overall length allow through-drilling and setting anchors or sleeves at significant depths without the need for extension pieces. The cross-tip geometry improves centring on the material surface and maintains penetration efficiency through dense substrates, making the bit suitable for heavy-duty professional and advanced DIY tasks.

Advantages

The cross-tip cutting head enhances initial centring and reduces walking on smooth surfaces, while the robust shank and flute design support efficient dust removal and chip evacuation during deep holes. Manufactured for use with SDS rotary hammers, the bit balances durability and cutting performance for prolonged drilling cycles in hard materials. Its extended length reduces the need for repeated repositioning and enables drilling through thick walls or multi-layer structures.

Suitable for

• Drilling deep holes in reinforced concrete and solid masonry
• Installing long anchors, sleeves or through-fixings
• Creating holes in natural stone and structural blocks
• Professional construction, renovation and heavy-duty DIY projects

Key specifications

• Diameter: 36 mm
• Total length: 600 mm
• Tip type: cross-tip for improved centring and penetration
• Compatibility: SDS rotary hammer systems
• Material use: masonry, concrete, natural stone

How to use

Select a compatible SDS rotary hammer and secure the bit in the chuck according to the tool manufacturer’s instructions. Mark the drilling position and, if required, set the hammer to rotary-plus-hammer mode. Start drilling at low speed to establish the centring, then apply steady, even pressure while allowing the tool’s percussion action to do the work. Periodically withdraw the bit to clear dust and chips from the hole and from the flutes to maintain cutting efficiency and to prevent overheating or jamming.

Usage recommendations

Use appropriate personal protective equipment including eye and hearing protection and dust control measures. For reinforced concrete, pre-locate rebar to avoid contact; if drilling through rebar is unavoidable, use an appropriate cutter and reduced feed pressure. Allow the bit to cool between prolonged drilling sessions and replace the bit if tip damage or excessive wear reduces performance.