Home / PTECH Field Inspection PTECH+™ FIELD INSPECTION – COMPLETE GUIDE The TSC Drill Pipe engineering team developed the PTECH+™ inspection procedures and drawings to provide a clear, uniform standard for assessing connection integrity, supporting safe operation, and dependable performance in the field. PTECH+™ Pin and Box Field Inspection Drawings PTECH+™ 43 PTECH+™ 47 PTECH+™ 52 PTECH+™ 55