Klein Pass-Through Automatic Wire Stripper (12066)
Klein Pass-Through Automatic Wire Stripper (12066)
Out of Stock - Available to Order - Usually ships in 15-20 days
Product Details
Product Details
Key Features
Overview
The Klein Tools Pass-Through Automatic Wire Stripper (12066) strips building wire and NM-B/UF-B cable in a single squeeze. This is an automatic wire stripper designed for residential and commercial electrical work: device terminations, panel work and long cable runs. Klein model 12066 handles 10-20 AWG solid wire, 12-22 AWG stranded wire, 12-2 and 14-2 NM-B cable, and 12-2 and 14-2 UF-B underground feeder cable.
Automatic means one-handed. The tool grips and strips in one step, which matters when you are holding a device in one hand and the conductor in the other, or working overhead on a ladder. A hold-open spring keeps the handles open between strips.
The pass-through design is the headline feature. Wire can feed completely through the tool, so strip length is unlimited. When you need to remove a long section of jacket on a cable run or expose a long length of conductor, you are not stuck working in short bites.
An integrated wire cutter cuts up to 12/2 UF-B cable. That covers the toughest cable on the stripping list, so one tool can cut to length and strip without a trip back to the pouch for linesman pliers.
Size and build: the 12066 measures about 7-1/8" (18.1 cm) long with a 3-11/16" (9.4 cm) handle and a jaw capacity of 7/16" (1.1 cm), and weighs 11.4 oz (323 g). The metal-and-plastic handle is in Klein orange and black. It is not insulated and does not ratchet. An integrated lock keeps it closed when not in use, protecting the blades from other tools and the contents of your bag.
Who should buy it: electricians and apprentices doing rough-in and trim, maintenance electricians, and anyone who strips a lot of NM-B or UF-B and wants a faster, one-handed alternative to a manual stripper.
Strip With One Hand
One squeeze grips and strips, so your free hand can hold the device, the box or the ladder.
- 10-20 AWG solid wire
- 12-22 AWG stranded wire
- 12-2/14-2 NM-B and 12-2/14-2 UF-B cable
Strip as Long as You Need
Wire feeds completely through the tool, so strip length is not capped by how deep the jaws go.
- Pass-through design for unlimited stripping length
- Ideal for long cable runs and extended wiring
- Hold-open spring keeps the handles open between strips
Cut and Strip With One Tool
The built-in cutter handles up to 12/2 UF-B, so cutting to length does not mean switching tools.
- Integrated cutter rated up to 12/2 UF-B cable
- Compact head fits into electrical boxes
- Integrated lock protects blades in the bag
Key Specifications
| Solid Wire | 10-20 AWG |
|---|---|
| Stranded Wire | 12-22 AWG |
| NM-B Cable | 12-2 and 14-2 |
| UF-B Cable | 12-2 and 14-2 |
| Cutter Capacity | Up to 12/2 UF-B |
| Jaw Capacity | 7/16" (1.1 cm) |
| Overall Length | 7-1/8" (18.1 cm) |
| Handle Length | 3-11/16" (9.4 cm) |
| Overall Width x Height | 2-3/16" x 1-1/16" (5.6 x 2.7 cm) |
| Hold-Open Spring | Yes |
| Lock | Integrated lock |
| Ratcheting | No |
| Insulated | No |
| Handle Material | Metal and plastic, orange/black |
| Weight | 11.4 oz (323 g) |
Built For
Pro Tip
On a long jacket strip, let the cable feed straight through the tool instead of re-gripping in short sections. That is what the pass-through design is for, and it keeps the strip clean and in one pass.
Tool Nut's Take
One Squeeze, No Length Limit
The Klein Tools Pass-Through Automatic Wire Stripper (12066) strips solid, stranded, NM-B and UF-B one-handed, with no cap on strip length.
- Who it's for: Electricians and apprentices on rough-in and trim, plus maintenance crews who strip NM-B and UF-B all day.
- Why it stands out: The pass-through design for unlimited strip length, plus a cutter rated to 12/2 UF-B in a head small enough for the box.
- Worth knowing: It is not insulated and does not ratchet. Treat it as a stripping and cutting tool for de-energized work.
Common Questions
- What wire sizes does the Klein 12066 strip? 10-20 AWG solid, 12-22 AWG stranded, 12-2/14-2 NM-B and 12-2/14-2 UF-B cable.
- Can it cut cable too? Yes. The integrated cutter cuts up to 12/2 UF-B cable.
- Is the 12066 insulated? No. Klein lists it as not insulated.
- Does it lock closed? Yes. An integrated lock keeps the tool closed and protects the blades when stored.

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