The Dormer H851 drill change head holder is a highly advanced tool specifically designed for precise drilling in various materials. Made from HSS (High-Speed Steel), this holder offers excellent cutting quality and durability. The internal cooling system ensures that the temperature remains controlled during the drilling process, which extends the tool's lifespan and enhances machining accuracy. The holder features an ISO 9766 cylindrical shank that guarantees easy handling and a stable grip. With an overall length of 117.1 mm and a cutting length of 46.1 mm, the H851 is ideal for applications requiring high precision. The special bright nickel coating protects the tool from corrosion and increases drilling efficiency.

• Suitable for 1.5xD drilling with HYDRA P, M, and K diameters
• Nominal Ø tolerance of h6 for precise fits
• Extra short design for improved accessibility
• High-quality bright nickel plating for additional corrosion protection.