Channellock 420 Tongue and Groove Pliers 9.5 in
- 9.5 inch straight jaw tongue and groove pliers
- 1.5 inch jaw capacity
- Laser heat-treated 90 degree teeth
- Forged high carbon steel, made in USA
- Lifetime warranty against defects
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A made in USA groove joint plier with laser heat-treated teeth and comfort grips. The material field and the title disagree on steel type, so read the title description.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B000040OUZModel: 420Category: Pliers
Overview
Tongue and groove joints let the jaws of this straight plier reopen to wider settings, while heat-treated teeth cut into the work at ninety degrees. Channellock forges the body from high carbon steel and fits comfort grips on the handles.
Hardened teeth and a forged body suit general gripping on pipes, nuts and rods around the house. The listing is inconsistent on material, calling it stainless in one field and forged high carbon in another, and it names no coating.
Who it's for
General repair around a home or shop calls for a plier that can adjust to different sizes, and this one covers the middle of that range. Users who need a compact tool or insulated handles should buy a different pattern.
Pros and cons
- Laser heat-treated teeth
- Forged high carbon steel
- Made in the USA
- Lifetime defect warranty
- Material fields disagree
- Coating not described
- Straight jaw only
- Instruction guide is the only extra
Performance notes
Grip comes from the angled teeth biting into the work, and the tongue and groove adjustment lets the jaws move to a new opening without losing parallel contact. Heat treating the teeth with a laser helps the edge hold up. Handle comfort affects how long a user can squeeze on a stubborn fastener.
Specifications
| Brand | CHANNELLOCK |
|---|---|
| Model | 420 |
| Dimensions & fit | |
| Cutting Width | 1.5 incheslower than 51% of 161 pliers |
| Item Dimensions L X W | 12 x 4 inches |
| Item weight | 13.44 ounces |
| Construction & materials | |
| Material Type | Forged high carbon steel (title); stainless steel (spec table) |
| Handle Material | Alloy steel |
| Color | Polished |
| Included components | |
| Included Components | Pliers, instruction guide |
| Unit Count | 1.0 Count |
| Warranty & support | |
| Manufacturer Warranty Description | Lifetime against defect |
| Other details | |
| Grip Type | Ergonomic, comfort grips |
| Item Type Name | 9.5 inch straight jaw tongue and groove pliers |
| Teeth | Laser heat-treated, 90 degree |
| Specific Uses For Product | Amateur, Inside, Inside; Amateur, Inside; Professional, Outside |
Closest rivals on specs
Frequently asked questions
How big is the Channellock 420?
The listing gives overall dimensions of 12 x 4 inches and a weight of 13.44 ounces.
Is the Channellock 420 stainless steel?
The spec table says stainless steel, while the item name says forged high carbon steel. The two do not agree.
Does the Channellock 420 come with anything else?
An instruction guide is listed with the pliers.
Is the Channellock 420 made in the USA?
Yes, the item name says made in USA.