Profile: Bircher, Inc. offers machining services. We render repair services for broken bolts, stripped threads and re-bushing sheaves. We specialize in providing precision and high performance marine boat shaft systems. We manufacture shafts for industrial purposes such as pump shafts, splined, pinion, plain, threaded, tapered or straight shafts, gear shafts and motor shafts. We also supply custom fitted and custom sized propeller retention systems & coupling retention systems.