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Red Klein Tools ferrule crimper kit 6.9 x 2.7 inches square ratchet

Klein Tools S-YXQ-21 Ferrule Crimping Tool 23-7 AWG Square Ratchet Kit

SKU CH-2MPE-8NXA4

Crimps 23-7 AWG ferrules with four high carbon steel dies and a self-adjusting ratchet

  • Total capacityRed
  • Pin count25
  • Maximum capacity mild steel10
  • Labor warranty1 Year
  • Size or dimensions6
  • Color and finishRed
  • Covers 23 to 7 AWG ferrule terminals in one tool
  • Four high carbon steel dies grip every angle for tight connections
  • Self-adjusting ratchet locks until a full crimp cycle completes
  • Ergonomic non-slip TPE handles reduce fatigue during extended use
  • Suits automotive wiring, car audio, electrical repairs and speaker projects

Professional Ferrule Crimping Kit

The Klein Tools S-YXQ-21 kit handles ferrule terminals from 23 to 7 AWG (0.25 to 10 mm²). It is built for electricians, automotive technicians and serious DIYers who need reliable wire terminations across that range. The self-adjusting ratchet mechanism reduces hand effort during repetitive crimping tasks.

Square Four-Die Crimp Profile

Four high-carbon steel dies compress the ferrule from every angle to create a square crimp that locks wires firmly in place. An adjustable compression wheel lets you fine-tune crimp depth for each terminal size. The ratchet only releases after a full cycle, preventing partial crimps.

Compact Hand-Tool Installation

At 6.9 by 2.7 inches and 11.6 ounces, the tool fits easily in a tool belt or glove compartment. Cushioned non-slip TPE grips stay secure with sweaty or greasy hands. Common errors include selecting the wrong die nest for the wire gauge and not completing the full ratchet stroke before release.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 94% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameKlein Tools
Model nameHand Rivet Nut Setter Kit
Part numberS-YXQ-21
Total capacityRed
Color and finishRed
Size & build
Size or dimensions6
More details
Pin count25
Maximum capacity mild steel10

Questions about this item

What does the 23-7 AWG crimp range mean when I am on the job?

It covers ferrule terminals from 0.25 to 10 mm² so you can handle the most common wire sizes without changing tools.

How does the self-adjusting ratchet control the crimp force?

The mechanism automatically matches pressure to the terminal size and only releases after a full cycle for even, repeatable crimps.

What physical space does the 6.9 by 2.7 inch frame need in my tool bag?

The compact profile fits easily in a standard pouch or belt pocket and weighs 11.6 ounces for all-day carry.

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