Patent ID: 6966210

Claim:
A tool for flanging coated brake pipes of a motor vehicle, the tool comprising: a basic body with an approximately semicylindrical receiving groove; a clamping jaw with an approximately semicylindrical clamping groove, said receiving groove and said clamping groove together forming a clamping channel for clampingly holding the brake pipe, said basic body and said clamping jaw together defining a parting plane; a pressing spindle arranged at said basic body and extending coaxially with the clamping channel and adjustable in relation to the clamping channel; a flanging pressure piece provided at a channel-side end of said pressing spindle forming the flanged head of the brake pipe, wherein the diameter of the clamping channel at right angles to the parting plane is smaller over at least approximately its entire length than the pipe diameter of the brake pipe, and surfaces of the receiving groove and of the clamping groove which form the clamping channel have an arithmetic average peak-to-valley height Ra of 5.0 to 10.0.