
Knipex Cobra 10-inch Red
Score: 92/100
Wiha Insulated Lineman’s Pliers
Score: 92/100Rankings

The Knipex 87 01 250 Cobra is a 10-inch high-tech water pump plier featuring 25 fine adjustment positions via a push-button mechanism for rapid adaptation on workpieces. It utilizes a self-locking jaw design with hardened teeth to provide superior grip on pipes up to 2 inches and nuts up to 46 mm with minimal hand force. Ideal for professional plumbers and mechanics needing versatile gripping in maintenance and automotive repair.

The Wiha 32948 is a high-quality insulated lineman's pliers designed for professional electrical work under live conditions up to 1,000V AC. It features robust safety certifications and DynamicJoint technology for enhanced grip, though its length and weight may hinder maneuverability in confined areas. It is best suited for electricians handling energized environments and arc-flash protected tasks.
| Attribute | ![]() | ![]() |
|---|---|---|
61 HRC | 64 HRCbest | |
250 mmbest | 241.3 mm | |
50 mmbest | — | |
| ↓ lower better | 335 gbest | 553.4 g |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Safety & Durability(1) | ||
Insulation Rating | Not Insulated | 1000V AC |
Jaw & Cutting Performance(3) | ||
Jaw Type | Serrated | Lineman's |
Wire Cutter | false | true |
Finish | Polished/Atramentized | Brushed |
Handle & Ergonomics(2) | ||
Handle Type | Non-slip Plastic | Cushion Grip |
Grip Type | Self-Locking | Cushion Grip |
Core Specifications(6) | ||
Tool Type | Water Pump Pliers | Lineman's Pliers |
Material | Chrome Vanadium Steel | C70 Tool Steel |
Hardness (HRC) | 61 HRC | 64 HRC |
Overall Length (mm) | 250 mm | 241.3 mm |
Weight (g) | 335 g | 553.4 g |
Warranty | Lifetime | No Hassle Guarantee |
Adjustability & Mechanisms(1) | ||
Joint Type | Box-Joint | DynamicJoint |

Products in the top-left offer the best value (high score, low price).

Professional reviewers and editors highlight the Knipex 87 01 250 Cobra for its superior grip and efficiency, noting it offers 30% more gripping capacity than previous models.
Users frequently praise the lack of slipping and low hand force required, as well as the comfort during repetitive tasks like pipe turning.

“smooth, effortless cuts on 10-14 AWG wire”



Professional reviewers highlight the Wiha 32948 as a high-quality tool for energized applications, praising its smooth cutting performance and robust safety certifications.
Everyday users and video demonstrators appreciate the tool's ability to cut wire easily without excessive force, noting its reliability on both solid and stranded wire.