This angle is one of the options available when using the TCS Suction Cup Bur. The Suction Cup Bur is screwed onto the angle and the angle is attached to the handpiece. Using this angle gives the technician a comfortable position to drill the Suction Cups into the stone model. Additionally, it helps with hard to reach areas. A straight mandrel may be used in lieu of this angle. The angle will become hot after two to three models drilled, when that happens, the angle needs to be lubricated with Item #6020-01 or similiar lubricant. // In order to use this angle your Hand Piece must contain knotches on either side for it to latch onto.