CSB Drilling Jigs - for Standard/SpaceSaver or MiniBlox - take the sting out of this potentially complicated marking-out process. They enable you to easily and accurately position the CSB wire anchors, as well as making any necessary modifications to individual parts, before commencing construction.
In order to avoid obstructions between the frames - spacers, crosswires, etc - we offer three height options for the vertical positioning of the anchors. These correspond with dimensions of our Carrier Tags and Hornblocks.
The CSB Jig also allows for displacement of the spring wire so, when the wires flex under the weight of the locomotive, the axle centre height should be correct.