Harbor Freight Central Machinery 12 Ton Press Knob

This is an adaptation of the knob made by Artifex Design, which did not fit my 12 ton Harbor Freight Central Machinery press as it was too small. I widened the center area of the knob that fits on the bottle jack and now it fits perfectly. It's a snug fit and hard to take off once its placed. This knob has been tested a few times on the press and works really well!

This is the exact press: https://www.harborfreight.com/12-ton-h-frame-floor-shop-press-70604.html I purchased mine in early 2025.