Diamond core drill bit GEKO 202×10×450 mm 17T 1.1/4" for wet and dry drilling

Diamond core drill bit GEKO 202×10×450 mm 17T 1.1/4" for wet and dry drilling is a segmented diamond coring tool designed to cut precise circular holes in hard materials. It features a 202 mm cutting diameter, 10 mm segment height and a 450 mm overall length with a 1.1/4" thread connection. The 17T segmentation provides efficient material removal and cooling during both wet and dry coring, making the bit suitable for use with core drilling machines and drill rigs on concrete, masonry and natural stone.

Advantages

The segmented diamond rim and robust body construction deliver consistent cutting performance and extended service life when used under recommended conditions. The 17T segmentation improves debris evacuation and reduces friction, which supports faster penetration rates and lower heat build-up during dry drilling while maintaining stable performance when water cooling is applied. The standard 1.1/4" connection ensures compatibility with a wide range of core drilling machines and makes attachment straightforward.

Suitable for (tasks / use cases)

• Drilling circular openings in reinforced and unreinforced concrete
• Creating passage holes in masonry and brick
• Core sampling and extraction from stone and aggregate
• Installing plumbing, electrical conduits and HVAC ducts

Key specifications

• Cutting diameter: 202 mm
• Segment height: 10 mm
• Overall length: 450 mm
• Segment type: 17T segmented diamond rim
• Connection thread: 1.1/4" standard core drill thread
• Suitable drilling modes: wet and dry coring
• Primary target materials: concrete, masonry, natural stone

How to use

Mount the diamond core drill bit to a compatible core drilling machine using the 1.1/4" thread and ensure the tool is firmly secured. For wet drilling, connect an adequate water supply to the machine to provide continuous cooling and flushing of material from the cutting area. For dry drilling, use intermittent feed and allow periodic pauses to avoid overheating; follow the machine manufacturer’s duty cycle recommendations. Begin drilling at low speed to establish a pilot groove, then increase feed pressure and maintain a steady, controlled rotation. Clear debris regularly and inspect the bit for wear or damage during use.

Usage recommendations

Use appropriate personal protective equipment and follow safety instructions for core drilling machines. Select wet drilling where possible for extended bit life and reduced dust; if dry drilling is necessary, monitor temperature and use controlled intervals. Match drilling speed and feed to the material hardness and the machine’s specifications to achieve optimal performance.