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Difficulty: MediumElectrical Hand Tools

A technician is trimming excess component leads on the solder side of a printed circuit board after through-hole assembly. Which hand tool is designed to produce a flat, clean cut closest to the circuit board surface without stressing the solder joint?

  1. A
    Lineworker pliers
  2. Flush cuttersAnswer
  3. C
    Manual wire strippers
  4. D
    Desoldering suction pump

Answer

Flush cutters are the appropriate hand tool for creating flat, low-profile lead cuts on circuit boards.
Flush cutters (also called micro-shears or flush-cut diagonal pliers) are specifically designed with flat outside blade faces. This allows the cutting edge to rest directly against the printed circuit board surface and slice cleanly through component leads without creating a raised point or exerting high mechanical shock on delicate solder joints.

Step-by-Step Solution

1
Identify the functional requirements for trimming through-hole component leads on a printed circuit board.
The tool must cut very close to the board surface and leave a flat profile without mechanical shock that could fracture solder joints.
Standard diagonal cutters have double-beveled jaws that pinch the lead into a sharp apex, which can bridge contacts or bend solder pads.
2
Evaluate the blade geometry of available electrical hand tools.
Flush cutters have a flat shearing surface on the back of the cutting jaw that rests directly against the board.
This flat profile produces a clean, low-profile cut that prevents chassis shorts and protects delicate circuit traces.

Key Concept

Selecting specialized electrical cutting tools based on blade geometry and delicate electronics assembly requirements.
Estimated Time:45s
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Topics

Electrical Hand Tools

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