Magni Alfra core drill HSS 50/30mm

Core drill, bright HSS with 19 mm Weldon shank and 2 driving surfaces. Inner bore is 6.35 mm. The core drill only cuts a thin ring of material. Ejection of the remaining drill core is facilitated via a guide and ejector pin by spring force. Quick removal of the chips upwards minimizes the risk of breakage. It requires relatively little energy, even for large drill diameters, and includes a pre-cutter and after-cutter.