




🔧 Upgrade your hydraulic press game with precision and grip that won’t quit!
This knob for Harbor Freight hydraulic bottle jack valve release screws is machined from premium 6061 aircraft-grade aluminum, offering superior strength and lightweight handling. Designed to fit 3/8" and 7/18" diameter screws, it features an extended knurled grip for enhanced control and installs quickly with a 1/4 turn secured by a set screw. Ideal for 6, 12, and 20 ton arbor presses, this knob is a must-have upgrade for professionals seeking reliable, ergonomic hydraulic press operation.
| Manufacturer | 3/8" 7/16" Knob | 
| Part Number | 3/8" 7/16" Knob | 
| Product Dimensions | 3.89 x 3.89 x 3.53 cm; 91 g | 
| Item model number | 3/8" 7/16" Knob | 
| Size | 3/8" | 
| Colour | Silver | 
| Included Components | Comes with housing | 
| Batteries included? | No | 
| Batteries Required? | No | 
| Item Weight | 91 g | 
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