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Feature Showcase: Z-Series 72-Tooth Ratchet

1:34
4:05
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At 1:34 in

Why are these sockets almost perfect?

What happens here

Koken's Z-Series ratchet is showcased, featuring a robust 72-tooth mechanism. The presenter demonstrates a specific model with a 1/4 inch body and a 3/8 inch head, highlighting its unique internal design with two pawls: one fixed and one floating. The floating pawl pivots with the gear, ensuring that the ratchet never skips a tooth, a common issue with many higher-tooth count ratchets (90 or 120 teeth). This design also contributes to extremely low back drag, making it efficient and reliable for various tightening and loosening tasks.

Goal: Examine the advanced mechanism of Koken's Z-Series 72-tooth ratchet.

Tools and materials

  • Koken Z-Series 72-Tooth Ratchet — Illustrating the internal pawl mechanism and its function