Knurled knob (J.155C) - with pin for tension spring. Spare part for J.159 flex swivel head ratchet. Measures 15/16" in diameter and fits some older SK Tuff 1 ratchets, eg, 43175, 43875, 45175 and 45180. The Facom J.159 used the same ratchet mechanism as the SK Tuff 1 ratchet. This knurled knob is also included in the 43175-2 repair kit ($35-50 online). Big savings - Limit 10 per customer.
The FACOM J.155C is a specialized tool component, specifically a replacement knurled directional control knob. It is engineered as a factory spare part to service older-generation, metal-grip 3/8" square drive ratchets, most notably the FACOM J.159 long-reach flexible swivel-head ratchet.
- Dimensional Spec: Features a diameter of 15/16" of an inch.
- Mechanical Design: Outfitted with an integrated retention pin for a tension spring. This mechanism locks into the internal layout of the ratchet head to manage directional switching (tighten vs. loosen) when turned.
- Cross-Brand Compatibility: Because FACOM shared historical tooling and global distribution tracks with SK Hand Tools during their corporate timeline, the
J.155C is identical to, and serves as a direct drop-in replacement part for, vintage SK Tuff 1 series ratchets
