Power Tec 91691 Steel Shaft 250mm Features and Benefits: Steel pulling shaft for use with the Power-TEC Miracle System. The shaft is is threaded through Miracle style bits before being attached to a line puller. Pulling shaft for use with Power-TEC Miracle System. Length: 250mm. Manufactured from steel. Part of the Miracle System Master Kit, Part No. 92171. Also available as part of a set, please see Part No. 91688.