Intro
Working with metal pipes and tubes — fitting a new radiator, re-routing plumbing lines in a bathroom renovation, or installing air conditioning refrigerant lines — demands clean, square cuts every time. A jagged or pinched edge can ruin a solder joint, cause leaks under pressure, or simply make the job look unprofessional. Hacksaws and angle grinders do the job, but they leave burrs, scatter hot metal shavings, and rarely produce the perfectly perpendicular cut that a compression or press fitting needs to seal properly. That is where a dedicated tubing cutter comes into its own. A quality pipe cutter grips the tube firmly, scores a precise track around the circumference, and severs the material cleanly with minimal effort — all without creating a mess of filings or needing a power outlet. For anyone who cuts copper, brass, or aluminium tubing regularly — from professional plumbers and HVAC engineers to committed DIY home renovators — a reliable manual tubing cutter pays for itself in saved time, fewer wasted fittings, and consistently leak-free connections.
Generalities
When shopping for a manual tubing cutter, there are a few things that separate the tools that will last a decade from the ones that will frustrate you after a handful of cuts. The first is build quality — look for a body made of high-strength zinc alloy or forged steel rather than thin stamped metal, because the frame has to stay rigid under pressure without flexing and throwing the cutting wheel off track. The second is the cutting wheel itself; a hardened steel wheel with a smooth, well-ground edge will score cleanly without work-hardening the copper or leaving a raised ridge that needs extra deburring. Capacity range matters too — most mid-size cutters handle tube diameters from about 3 mm up to around 35 or 40 mm, which covers the vast majority of household plumbing and light commercial work. Finally, pay attention to ergonomics: a cutter with a constant-swing or telescopic feed mechanism stays compact even when working on larger-diameter pipe, which is a real advantage when you are wedged inside a kitchen cabinet or reaching into a tight stud bay.
In this review we take a close look at a well-regarded oscillating tubing cutter from RIDGID, a brand that has been making pipe-working tools for professional trades since 1923. We will cover its cutting capacity, build materials, standout design features like the tool-free wheel change system, and how it handles day-to-day use on common materials like copper, brass, and aluminium. We will also weigh up the pros and cons honestly and suggest the specific jobs and user profiles this tool is best suited for, so you can decide whether it is the right cutter for your toolbox.
Description
The RIDGID Model 150 (part number 31622) is a manual oscillating tubing cutter built around a high-strength zinc alloy body that weighs just 340 grams yet feels reassuringly solid in the hand. Its cutting capacity ranges from 3 mm to 38 mm in outside diameter (roughly ⅛ inch to 1⅛ inches), which comfortably spans the most common copper and thin-wall conduit sizes found in domestic plumbing, heating, and air conditioning work. The hardened steel cutting wheel is engineered to score copper, brass, aluminium, and thin-walled ducting cleanly, and a spare wheel is stored inside the adjustment knob so you are never caught short on a job.
What sets the Model 150 apart from budget alternatives is its telescopic feed screw design. Unlike traditional cutters where the knob extends further out from the body as you open the jaws wider, the 150 keeps the handle at a constant length regardless of the pipe diameter you are working with. This makes a genuine difference when cutting inside cramped spaces — under a bathroom vanity, between floor joists, or anywhere your knuckles are already brushing against a wall. The grooved rollers on the lower jaw are shaped to let you cut right up close to a flare or fitting, and an integrated collapsible reamer folds out from the body to deburr the inside of the pipe after the cut, saving you from reaching for a separate tool.
Day-to-day operation is refreshingly straightforward. You open the jaws around the tube, tighten the knob until the cutting wheel lightly bites the surface, and rotate the tool around the pipe — the oscillating action lets you work the cutter back and forth in a narrow arc rather than needing a full 360° swing. Tighten the knob a quarter-turn every couple of rotations and the wheel tracks perfectly in its own groove, producing a clean, square cut in well under a minute on standard 15 mm copper. The X-CEL button and pin system is another thoughtful touch: push the button, swap out a worn cutting wheel, and you are back to work in seconds — no screwdrivers, no hunting for tiny retaining clips.
Beyond the basics, the Model 150 includes a spare cutting wheel stored inside the knob — a small detail that speaks to RIDGID's understanding of how tradespeople actually work. The feed screw itself is designed to resist clogging, so copper swarf and cutting debris do not jam the mechanism over time. The zinc alloy body shrugs off the kind of knocks and drops that are inevitable on a busy worksite, and the silver-and-black finish wipes clean with a rag after a day of handling flux-smeared pipe.
At 19.1 × 8.9 × 3.8 cm, the cutter is compact enough to live in a tool belt pouch or the top tray of a tool box. It weighs 340 grams, which is light enough for all-day use but heavy enough to feel substantial. RIDGID backs the tool with their standard warranty, and the cutter carries a 4.7 out of 5 stars rating from over 950 customer reviews — placing it among the most trusted options in the tubing cutter category. While it ranks #335 in Tubing Cutters on the bestseller charts, its reputation among professional plumbers and HVAC technicians speaks far louder than its sales rank.
Pros and cons
Pros
- Telescopic feed screw keeps the tool compact at any pipe diameter — a real advantage when working in tight cabinets or between joists where a protruding knob would hit the wall
- High-strength zinc alloy body is both lightweight at 340 g and tough enough to survive jobsite drops that would crack a plastic-bodied cutter
- X-CEL button and pin system lets you swap a worn cutting wheel in seconds without any tools — no tiny screws or retaining clips to lose on a dark floor
- Grooved rollers allow cuts right up against a flare or fitting shoulder, so you waste less pipe and rework fewer connections
- Built-in collapsible reamer means one less tool to carry — deburr the inside of the pipe immediately after cutting without reaching for a separate pen reamer
- Spare cutting wheel stored inside the adjustment knob — a genuinely useful backup that costs nothing extra and is always with the tool
- Cleanly cuts copper, brass, aluminium, and thin-wall conduit — the hardened steel wheel tracks true and does not work-harden the copper edge
- Oscillating action means you only need a narrow swing arc, making it usable even when you cannot get a full rotation around the pipe
Cons
- Capacity tops out at 38 mm — it will not handle larger commercial or industrial pipe sizes, so professionals working on bigger installations may need a second cutter
- At around £45 it costs more than basic import cutters — the price is fair for the quality, but a casual DIY user who cuts one pipe a year may not see the value
- The zinc alloy body, while durable, is not as indestructible as a forged steel frame — repeated hard drops onto concrete will eventually take their toll
- Cannot cut stainless steel tubing — this is a limitation shared by most manual cutters in this class, but worth knowing if you work with stainless push-fit systems
- The feed screw, though designed to resist clogging, still benefits from an occasional blast of compressed air or a wipe-down to keep copper dust from accumulating in the threads
Use cases
A versatile manual tubing cutter that suits professional plumbers and HVAC technicians who need reliable, clean cuts in tight spaces, as well as serious DIY renovators tackling plumbing projects with copper and brass pipework.
Residential Plumbing Installations
Whether you are roughing in a new bathroom, re-piping a kitchen, or adding an outdoor tap, the Model 150 handles 15 mm and 22 mm copper tube effortlessly. The constant-swing design really shines when you are cutting tails inside a vanity unit with barely enough room to get both hands in, and the built-in reamer saves you from juggling multiple tools in a cramped workspace.
HVAC Refrigerant Line Work
Air conditioning and heat pump installs involve a lot of copper line set trimming — often in awkward outdoor or attic positions. The oscillating action means you can sever a refrigerant line even when the pipe is fixed to a wall and you cannot spin a cutter all the way around it. Clean, square cuts are essential here because a bad edge can compromise a flare fitting under pressure.
Repair Work in Confined Spaces
When a pipe bursts inside a stud wall or a radiator valve needs replacing and the pipework is boxed in, you need a cutter that does not demand room to swing. The Model 150's telescopic body and narrow arc action let you cut copper in gaps as small as your forearm can reach — something a hacksaw simply cannot do cleanly in the same situation.
DIY Home Renovation Projects
If you are the kind of homeowner who tackles radiator swaps, towel rail installations, or moving a boiler feed yourself, this cutter bridges the gap between cheap throwaway tools and full professional kit. You get factory-quality cuts without needing to learn the feel of a hacksaw — and the spare wheel means the tool keeps working through a whole renovation without a mid-project trip to the shop.
Light Automotive and Fabrication Work
For cutting aluminium fuel lines, brass fittings, or thin-wall tubing in a workshop or garage setting, the Model 150 delivers burr-free results that do not need filing before assembly. It is not a replacement for a proper tube bender or flaring kit, but for straightforward cut-to-length jobs it is fast, clean, and repeatable.