Screw-clamped threaded drilling bar with a 1.5° helix angle for clamping a triangular indexable insert with an inner circle diameter of 9.525 mm (designation TN 16NR). Right-hand standard design with a cylindrical shank made of steel without coolant holes. 20 mm diameter, 170 mm total length for internal threading, grooving of retaining rings, and grooving of O-rings. Additional technical specifications: Ø D min: 27 mm, gross weight: 407.8 g, cutter design: SI(RL), functional width - metric: 13.85 mm, functional height - metric: 9 mm, functional length - metric: 170 mm, base body diameter - metric: 21 mm, clamping type code: S - screw clamping through hole, net weight: 383.4 g, shank width - metric: 18.5 mm, shank height - metric: 18 mm, cutting direction: right, clamping diameter - metric: 20 mm.