| 1 | Heavy-Duty Wheel Pipe Cutter | Cleanly cuts threaded or unthreaded pipe with a cutting wheel. | Approximately 1/8 to 6 in nominal pipe, depending on frame configuration. | Carbon steel, galvanized steel, stainless steel, and ductile iron models vary by wheel type. | Square cut depends on pipe alignment, wheel condition, and controlled feed pressure. | The cutter does not define thread geometry; the cut end must be prepared before threading to ASME B1.20.1 requirements. | Check wheel material, replacement-wheel availability, minimum wall thickness, and access clearance. |
| 2 | Compact Ratcheting Pipe Cutter | Cuts pipe in restricted spaces where a full-size cutter cannot rotate. | Commonly about 1/8 to 2 in nominal pipe. | Copper, brass, aluminum, plastic-coated metal, and selected steel applications. | Controlled ratchet travel helps maintain a consistent cut, but does not replace end squaring or deburring. | Relevant only as a preparation step; NPT dimensions are controlled by the threading equipment and inspection method. | Evaluate minimum operating radius, cutter-wheel life, grip in wet conditions, and replacement parts. |
| 3 | Chain Pipe Cutter | Cuts large-diameter or difficult-to-access pipe using multiple cutting wheels. | Typically about 2 to 12 in nominal pipe; larger systems are available. | Cast iron, ductile iron, clay, concrete, and selected steel pipe, subject to wheel specification. | Multiple wheels distribute load and support a circumferential fracture or cut when correctly tensioned. | Normally used before joining or repair; it does not produce or verify ASME B1.20.1 threads. | Confirm pipe-material compatibility, chain length, wheel count, maximum wall thickness, and operator force. |
| 4 | Tube Cutter | Produces a controlled cut on small tubing for water, gas, and instrumentation work. | Commonly 1/8 to 1-1/8 in outside diameter, depending on model. | Copper, brass, aluminum, thin-wall stainless steel, and plastic-coated tubing with suitable wheels. | Designed for a clean, near-square cut with limited material deformation when feed pressure is controlled. | ASME B1.20.1 applies to tapered pipe threads, not ordinary tube cuts; threaded adapters require separate verification. | Review burr control, wheel compatibility, minimum tube diameter, and suitability for soft materials. |
| 5 | Pipe Reamer and Deburring Tool | Removes internal and external burrs after cutting to improve flow and threading preparation. | Hand tools commonly cover approximately 1/8 to 2 in pipe or tubing. | Copper, brass, aluminum, steel, stainless steel, and plastic models vary by blade design. | Uniform chamfering and burr removal reduce thread-starting interference and improve die engagement. | Supports preparation for NPT threading but does not establish taper, pitch, crest, or root dimensions. | Select blade geometry for the material and avoid excessive chamfering that can reduce usable thread length. |
| 6 | Manual Ratchet Threader | Cuts external pipe threads with interchangeable dies and a hand-operated ratchet. | Commonly 1/8 to 2 in nominal pipe; some systems extend to 3 or 4 in. | Primarily carbon steel and galvanized steel; dies for stainless steel require suitable geometry and lubricant. | Thread accuracy depends on die quality, die-head alignment, pipe support, lubrication, and correct starting technique. | Use NPT dies identified for ASME B1.20.1 thread form and verify the finished thread with an appropriate gauge. | Compare die material, die replacement cost, ratchet direction, portability, and required working clearance. |
| 7 | Portable Power Threader | Mechanically drives a die head for faster on-site external pipe threading. | Typically about 1/2 to 2 in nominal pipe; capacity depends on the die head. | Steel, galvanized steel, and stainless steel when matched with the correct dies and cutting oil. | Consistent rotational speed improves repeatability, while alignment and die condition control thread quality. | ASME B1.20.1 compliance depends on the installed NPT die set, setup, and final inspection—not the motor alone. | Assess torque, overload protection, spindle speed, portability, oiling method, and electrical or battery requirements. |
| 8 | Stationary Power Threading Machine | Cuts, reams, and threads pipe in a fixed workshop or fabrication environment. | Common configurations cover approximately 1/8 to 2 in, 1/8 to 4 in, or up to 6 in nominal pipe. | Carbon steel, galvanized steel, stainless steel, and other machinable pipe materials. | Rigid workholding, controlled spindle speed, automatic oiling, and guided die heads improve repeatability. | Select die heads specifically marked for NPT and inspect finished threads against ASME B1.20.1 requirements. | Prioritize rated capacity, motor power, chuck and guide design, oil recovery, floor space, and service access. |
| 9 | Interchangeable NPT Die Head | Forms external tapered pipe threads when fitted to a compatible hand or power threader. | Typical die sets range from 1/8 to 2 in NPT; larger die heads are available for selected machines. | High-speed tool steel or alloy-steel dies are selected according to pipe material and production volume. | Thread form, pitch, taper, and effective thread length depend on die design, calibration, and correct installation. | The die head should be specified for NPT thread dimensions and checked with calibrated plug or ring gauges. | Verify compatibility, die identification, material grade, resharpening policy, and availability of complete replacement sets. |
| 10 | NPT Thread Plug and Ring Gauge Set | Inspects internal and external tapered pipe threads after cutting or threading. | Available for standard NPT sizes from small instrument connections to large nominal pipe sizes. | Hardened gauge steel with a documented calibration system for production inspection. | Provides a functional pass/fail check of thread size, taper, pitch, and engagement position within gauge limits. | Directly supports verification of NPT threads manufactured to ASME B1.20.1; gauge class and calibration status must be controlled. | Confirm nominal size, thread designation, gauge class, calibration interval, storage protection, and inspection records. |