Get all our apps in one The Pocket Pipe calculator is designed for Pipefitter/ welders/fabricators. Mitered Cut on end of a piece of pipe. Mitered Offset. Mitered 180 Return. Wye Connection. Orange Peel. Custom Concentric Reducer. Custom Eccentric Reducer. Mini Pipe chart reference in-screen. NPS Metric Pipe chart. NPS Imperial Pipe chart.