44.45 mm / 1.75 in Pie Cut Jig 18° – 5 Pieces per 90° – Lobster Back Header Bends CLR 1D 1.5D 2D – Bandsaw Jig STL

My go-to angle: 18°. 5 pieces make a 90° bend that looks right and welds up quickly. Made for 44.45 mm / 1.75 in OD tube – classic header primary size for V8s, and also used for big bike exhausts and turbo manifolds. You can make three different radii: 2D – CLR 88.9 mm / 3.5 in – no insert 1.5D – CLR 66.68 mm / 2.63 in – 1.5D insert 1D – CLR 44.45 mm / 1.75 in – 1D insert, for the tightest spaces next to the head How I work with it: tube in the jig, jig clamped in the bandsaw vise, cut, rotate…

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