Klein Tools 50046 Constant Swing Tubing Cutter
- 1.38 inch outside diameter rating (1-3/8 inch)
- Constant swing design for copper tubing
- Zinc alloy body, orange
- Warranty: call the vendor for terms
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A hand tubing cutter from Klein Tools for copper tube up to its listed outside diameter. The listing gives no smallest size and no warranty terms, so confirm both before buying.
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ASIN: B0DPQYR176Model: 50046Category: Pipe, Tube & Hose Cutters
Overview
A zinc alloy frame holds the cutting wheel on this Klein Tools tubing cutter, which is sized for common copper tube. The constant swing design in the title is meant for tight spots where a standard cutter cannot rotate fully.
A compact manual cutter gives clean square cuts on copper without a saw, and it works in cramped spaces near walls and joists. The listing does not state the smallest tube it can hold, how many spare wheels come with it or how long the warranty runs.
Who it's for
Tradespeople and do-it-yourself homeowners working on copper water or refrigerant lines need a fast cut with little swing room. Buyers dealing with larger diameters or non-copper pipe should look at a different cutter.
Pros and cons
- Constant swing for tight spaces
- Zinc alloy frame
- Sized for common copper tube
- Single tool, no power needed
- Smallest tube size not listed
- Warranty terms need a vendor call
- Wheel and spare parts not described
Performance notes
A tubing cutter scores a thin line around the tube by rolling a hardened wheel as the tool is rotated, then tightens a little each turn. The result is a square, burr-light cut as long as the wheel is sharp and the feed is gradual. A constant swing frame lets the user work with short arcs, which matters behind pipes and close to walls.
Specifications
| Brand | KLEIN TOOLS |
|---|---|
| Model | 50046 |
| Dimensions & fit | |
| Outside Diameter | 1.38 inches (1-3/8 inch) |
| Construction & materials | |
| Material Type | Zinc alloy |
| Color | Orange |
| Included components | |
| Unit Count | 1 count |
| Included Components | 1-3/8 inch constant swing tubing cutter |
| Warranty & support | |
| Manufacturer Warranty Description | Call vendor for warranty |
| Other details | |
| Item Type Name | Cutters |
Closest rivals on specs
RIDGID RC-1625 Ratchet Action Plastic Pipe Cutter- Outside Diameter 1.38 vs 1.56 inches (-12%)
Frequently asked questions
What is the smallest tube the Klein Tools 50046 cutter handles?
The listing only gives an outside diameter of 1.38 inches, which is the upper size. No minimum tube diameter is listed.
What does constant swing mean on this Klein Tools cutter?
It is the design name in the title. The listing gives no further description, so check Klein Tools for how the swing works.
Is this a power tool?
No. It is a manual tubing cutter in a zinc alloy body, and the listing mentions no motor or battery.