ALM-27-155 Drilling Chuck, Cannulated, for Shanks up to 4.5mm diam., and for Triangular Shaft Width Across Flats 407mm (Schanz Screws, Steinmann Pins). with Key (27-156).
ALM-27-156 Key.
ALM-27-157 Drilling Chuck, Cannulated, for Shanks up to 6.35mm diam., with Key (23-158).
ALM-27-158 Key.