Crimper

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Cable Cutter and Crimper

Synonyms: DE:Fahrrad-Bowdenzugschneider mit integrierter Crimpfunktion
Location: Bike Lounge


Wiki Entry: Professional Cable Cutters & Crimpers

This entry covers the dual-purpose workshop cutters and crimping pliers manufactured by Eldi and Park Tool (CN-10). These specialized tools are designed to both cleanly slice bicycle cables and crimp protective end caps/ferrules.

Understanding the Design: Dual Functionality

At first glance, the circular openings in the jaws resemble a press or crimping die. However, these are heavy-duty combination tools that handle two distinct workshop tasks:

  • The Shear Cut (Primary Function): Unlike hardware store wire cutters that pinch and crush, these blades slide past each other like high-precision scissors. The circular jaw pocket encircles the tough steel cable from all sides during the cut, preventing the brake or shifter housing from flattening or fraying.
  • The Built-in Crimper (Secondary Function): The notch located just below the main cutting jaw or near the center pivot is engineered specifically to crush/crimp aluminum cable end caps (protective sleeves) and housing ferrules into place, ensuring the cable ends do not unspool or fray over time.

1. Eldi Heavy-Duty Cutter & Crimper (Black Handles)

  • Identification: Stamped with the classic "Eldi" logo on the hardened tool steel head.
  • Design: Features a spring-loaded return mechanism and a heavy wire loop closure latch at the handle base for safe storage.

2. Park Tool CN-10 Cable Cutter (Blue Handle)

  • Identification: Easily spotted on the tool board by the iconic Park Tool blue vinyl handle grip.
  • Design: Uses cold-formed, heat-treated steel jaws featuring two dedicated crimping sections for clean ferrule deformation.

Workshop Best Practices

  • Blade Protection: Never use these specialized shearing jaws to cut hardened wheel spokes, cotter pins, or heavy chain master-links. Hard steel will instantly dent or chip the curved cutting edges, ruining them for cables.
  • Ferrule Placement: Place the aluminum end cap entirely within the secondary crimping notch before applying force. Using the main shear blade to crimp can accidentally slice right through the thin metal cap.