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Combination side cutting pliers are essential in workshops and homes. They are the go-to tool for electrical work, general repairs, and construction. This single tool combines two main jobs: powerful gripping and clean cutting.
Because this tool is used for safety-critical jobs, like handling electrical wires, its quality cannot be ignored. The Indian government has made certification compulsory. Every plier must carry the ISI Mark before it can be legally sold.
The standard that defines this quality is IS 3650:1981. This rule ensures the tool is strong, efficient, and will not fail under heavy use.
The government has placed pliers under a strict new rule. This rule is called the Hand Tools (Quality Control) Order, 2024. This order demands that all Combination Side Cutting Pliers must meet the IS 3650 standard.
This means the ISI Mark is now mandatory. Selling non-certified pliers in the Indian market is illegal. This law is being brought in over different time periods for different sized companies.
The ISI Mark is the legal permit you need to manufacture and sell this product.
BIS ISI Mark Registration for Pipe Wrenches - Heavy Duty IS 4003 (Part 2): 1986
The IS 3650:1981 rule outlines the exact materials and manufacturing process required. It defines the required strength for the steel used in the pliers. The standard focuses on the heat treatment process which gives the tool its necessary hardness
Pliers must have two different hardness levels for the job they do. The body needs to be hard enough to resist bending. The cutting edges must be much harder to slice tough material without dulling
The standard requires the main body to have a hardness between 350 and 510 HV (Vickers Hardness). However the critical cutting edges must be hardened much more demanding a range between 510 and 700 HV. This dual hardness ensures both strength and cutting power.
To earn the ISI Mark the pliers must pass a series of extreme performance tests. These tests are designed to simulate years of hard industrial use. The manufacturer must have an accredited laboratory to conduct these checks daily
This test checks the main job of the side cutters. The pliers must be able to cleanly cut both hard and soft materials. They are tested on specific diameters of wire without showing any damage or deformation on the cutting edges afterward.
The gripping part of the pliers must hold materials without slipping. They are tested to ensure they can securely hold tubes or round rods under pressure. The jaws must not crush the material excessively but must hold it firmly
These checks simulate accidental misuse or dropping the tool. The Torsion Test ensures the pliers do not twist or warp permanently when used for bending thick wire. The Shock Test checks the tool's resilience against sudden heavy impacts
The handles must withstand great force without permanent damage. This is confirmed by the Handle Load Test. For pliers with insulated handles, an additional electrical test is mandatory. This Insulation Test ensures the handles protect the user from electrical shock, as per the safety rules defined in IS 2615.
BIS ISI Mark Certificate for PVC Pipes: IS 4985 2000
Passing these technical tests is the absolute core of the certification process.
|
Test Parameter |
Requirement under IS 3650 |
|
Cutting Edge Hardness |
Must be 510 HV to 700 HV |
|
Body Hardness |
Must be 350 HV to 510 HV |
|
Torsion Test |
Must withstand specified twisting force |
|
Handle Load Test |
Must bear load without bending |
|
Insulation Test (If Applicable) |
Must pass electrical safety standards (IS 2615) |
The BIS certification process (Scheme-I) requires full compliance at the factory level.
The manufacturer must first set up a certified Quality Management System (QMS). This system includes clear plans for routine checking of raw materials and final products. The factory must also have a laboratory equipped for all required IS 3650 tests
The formal application is submitted online to the BIS. This includes the manufacturer’s technical data, details of the production process, and the factory layout map. All documents must be correct before the process can move forward.
A BIS officer conducts a mandatory physical audit of the plant. The officer checks the manufacturing process, the machinery, and the competence of the quality control staff.
The BIS officer seals product samples during the visit. These samples are sent to an authorized third-party laboratory.
If both the factory audit and the external test results are successful, the BIS grants the license. The manufacturer is then legally allowed to use the ISI Mark on the product and its packaging.
BIS certification for Combination Side Cutting Pliers is now a legal necessity. It is the only way to guarantee a tool's cutting efficiency, safety, and long-term durability. Successfully navigating the rigorous testing and documentation process requires specialized knowledge of the BIS procedural framework. For reliable assistance in achieving mandatory BIS certification for Hand Tools under IS 3650:1981, securing your market entry, consult with Agile Regulatory.
Nishi Chawla
22 Jan, 2026
Nishi Chawla
20 Jan, 2026
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