Duro DP-EXT3 Dry Diamond Core Bit Extension Bar 200mm Drilling Adaptor

Details:

• Extended 200mm Working Depth: Adds significant reach to standard dry diamond cores, allowing you to bore completely through thick stone and cavity masonry without fouling the drill chuck.
• Standard 1/2" BSP Threaded Connection: Features precision male and female 1/2" BSP fittings that screw directly between standard trade dry core bits and arbours, ensuring immediate job-site compatibility.
• High-Tensile Heat-Treated Steel: Built to withstand intense rotational torque and heavy mechanical vibration, preventing bending, warping, or thread stripping during demanding trade jobs.
• Precision-Turned Concentric Alignment: Machined to tight engineering tolerances to ensure the extension runs true, reducing core bit wobble and cutting down on hand-arm vibration for the user.
• Spanner Flats on Collar: Features flat machined sections along the collar, enabling fast tightening and easy removal with a standard open-ended spanner even after heavy drilling runs.
• Versatile Mechanical Application: Perfect for plumbing installations, HVAC ventilation ducts, and electrical trunking routes through brick, block, and general masonry structures.