Manufacturer-listed / documented
Relevant manufacturer documentation explicitly supports the stated relationship for the stated application.
Home Compatibility Methodology
How we verify technical relationships
Compatibility Methodology
ElectricalTradeTools.com separates documented compatibility from physical fit, assumptions and forum anecdotes. This page defines the source hierarchy and status labels used for knockout systems, conduit benders, crimping tools, cable cutters, cable-pulling systems and strut cutters.
The core rule
Never infer a technical relationship just because two parts look alike or physically connect. Record the exact tool model, generation, accessory, application, size/material limits, source and last-verified date.
Source hierarchy
- Manufacturer manuals and compatibility matricesPrimary authority for tool/accessory relationships, limits and required components.
- Manufacturer catalogs and product pagesUseful for current model status, catalog numbers, capacities and accessory families.
- Connector or application manufacturer documentationEspecially important for crimping, where tool/die/connector combinations may be classified as a system.
- Authorized distributor technical documentationSecondary evidence when it reproduces or points to manufacturer technical data.
- Forums, Reddit, message boards and videosDiscovery only: useful for finding questions and legacy confusion, not for establishing approval.
Compatibility status labels
Documented compatible with adapter
The combination is supported only with a named adapter, draw stud, head, jaw, roller or other intermediate component.
Physical fit / approval not established
A physical relationship may be reported, but manufacturer support for the intended application has not been established.
Not compatible
Manufacturer documentation or the system requirements establish that the combination should not be used as compatible.
Unknown / insufficient documentation
Reliable evidence is incomplete, unavailable or conflicting. Unknown is a valid result.
What gets stored with a compatibility record
- Manufacturer
- Exact model
- Generation or revision
- Accessory catalog number
- Accessory type
- Application
- Size range
- Material limits
- Required adapter/head/stud
- Current or discontinued status
- Source URL/document
- Document revision/date when available
- Last verified date
- Compatibility status
Cable-pulling systems are load chains
For cable pulling, compatibility is not limited to the puller model. The documented chain can include puller force and duty rating, mounting method, rope construction and rated capacity, grip or swivel capacity, cable diameter/construction and the geometry of the run. Breaking strength, working/rated capacity and the puller’s peak force are recorded as different fields rather than treated as equivalent.
Strut cutters depend on the exact channel profile
For strut shears and cutters, the site records the cutter platform, exact die or blade, channel dimensions/profile, gauge, material and any required power unit. A die documented for one profile is not generalized to another profile merely because both products are described by the same nominal strut width.
Special rule for crimping systems
Crimping requires a stricter evidence chain because the acceptable combination can depend on tool tonnage, head or jaw, die family, conductor material and size, connector manufacturer/series, die index and published classification or instructions.
Physical fit is not enough.
A U-style, W-style or other die physically seating in a head does not automatically establish that a connector/conductor termination is approved or classified. When the manufacturer documentation does not support the complete chain, the site should display unknown or direct the user to verify the current manufacturer instructions.
Current vs. legacy equipment
Professional electrical tools can remain in service for decades. A product-family name may span multiple generations with different shoes, dies, heads, studs or supported applications. Pages should identify current and discontinued equipment explicitly and avoid applying a current accessory chart to a legacy tool unless the manufacturer documents that relationship.
When sources disagree
Conflicting sources are not silently blended into one answer. The more application-specific and current manufacturer source gets priority, but a meaningful conflict remains visible until it can be resolved. A forum claim cannot override manufacturer instructions.
Affiliate independence
Technical compatibility data is separate from merchant data. A merchant carrying an item does not prove compatibility, and an affiliate relationship does not change the status of a tool/accessory combination. The technical conclusion comes first; purchase links are a separate layer.
Methodology FAQs
What does “manufacturer-listed” mean on this site?
It means a manufacturer manual, compatibility matrix, catalog or product page explicitly supports the stated tool/accessory/application relationship. The claim remains limited to the sizes, materials, connectors and conditions in that source.
Does physical fit prove that a combination is approved?
No. Physical interchangeability and a manufacturer-listed, classified or approved application are different statuses. The site does not promote physical fit to approved status without supporting documentation.
How are forum posts used?
Forums and message boards are used to discover real questions, legacy-model confusion and terminology. They are not treated as authority for compatibility, electrical safety or crimp classification.
What happens when sources conflict?
The conflict is kept visible rather than resolved by guesswork. Newer manufacturer documentation and application-specific documents are prioritized, and the result can remain unknown until the conflict is resolved.
Why is crimping held to a stricter standard?
A crimp system can depend on the tool, head, die, connector, conductor material and size, die index and published classification. A die physically fitting a head does not by itself establish an approved termination.