MACTECH 812 Clamshell Pipe Lathe 6.63 - 12.75" Split Frame = 812LC Made in USAItem: Mactech Model 812LD Clamshell Lathe with Tool Bits and Accessories. The Mactech 812 Has a Split Frame Design for On Site Machining of 6. 63" 12. 75" O. D. Pipe. Nearly identical to the current Mactech 812LC Model and Interchanges with LC Current Tooling and Replacement Parts. Includes a motor housing assembly already installed on unit designed for a 1 2" square drive motor (not included). Can be used with various other motor configurations such