Rennie Tools - 300mm long - 1 1/4" UNC Diamond Core Drill Extension Bar

• Extend Drilling Depth – 300 mm long 1.1/4" UNC diamond core drill extension bar designed to increase drilling reach and depth without sacrificing accuracy — ideal for use on site or in workshop settings.
• 1.1/4" UNC Male to 1.1/4" UNC Female Adapter
• Precision 1¼" UNC Threads – Accurately machined male and female threads ensure a tight, concentric fit between your drill and core bit, eliminating wobble and improving cutting precision.
• Heavy Duty Steel Construction – Manufactured from hardened, high-strength steel for maximum torque transfer, reliability, and long service life under demanding drilling conditions.
• Professional Compatibility – Fits most professional 1¼" UNC diamond core drilling machines and core bits, including leading trade brands. Suitable for use with wet and dry diamond cores.
• Rennie Tool Company Quality – Trusted by tradesmen across the UK for precision-engineered drilling accessories.

The Rennie Tool Company 1¼" UNC Diamond Core Drill Extension Bar is the perfect solution for extending the reach of your professional diamond core drill. Designed for deep drilling through masonry, brick, concrete, and blockwork, this extension rod offers exceptional strength and accuracy. Each unit features precision-cut 1¼" UNC male and female threads, ensuring a vibration-free, perfectly aligned connection between your drill and core bit. Constructed from high-grade, heat-treated steel, this extension delivers outstanding durability and torque performance. Compatible with most professional diamond core drilling machines, this heavy-duty extension is ideal for electricians, plumbers, and builders who require reliability and precision on every job.