apparatus involves advancing wedge material stock and also substantially permanently forming the stock material to precise dimensional tolerances by squeezing and deforming the material with pinch rollers . deforming of the material includes pinching the material and thereby reducing the thickness of the material at preselected locations , with the reduced thickness portions of the material establishing precise dimensional tolerances of wedges produced by the process . a wedge magazine comprises the lower tooling of a coil injection machine and forms , in effect , an extension of tool gaps that accommodate winding coils in a coil injection machine . the magazine receiving the wedges may be a short term storage magazine which in turn feeds the wedges to a wedge magazine that forms the lower tooling of a coil injection machine . the present invention is of primary use and benefit in multifunction machines that perform the multiple functions of : making wedges for stator cores , inserting coils of winding turns into stator cores , and placing the wedges in at least selected slots of a stator core . pinch wheels or rollers are contoured and dimensioned so that wedge material being rolled therebetween will be reduced in thickness at accurately located regions and formed into a desired configuration . the forming of the wedge material by the wheels results in wedges having precisely controlled dimensional tolerances and dimensional stability , with the result that the wedges lie squarely in stator core slots , and &# 34 ; wire over wedge &# 34 ; problems associated with skewed wedges in stator core slots are overcome .