Hammer head 24 × 24 × 40 with a 12 × 8 helve socket — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/hammer-head-24x24x40/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Catalog version: 2026-10-20

Overall (mm): length 24.0, width 24.0, height 40.0
- 24 × 24 × 40 block with a 12 × 8 mm through socket near its top for the helve (line-on-line), the face 32 mm below the helve's underside.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

dimension  value
head  24 × 24 × 40 mm
socket  12 × 8 mm

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Henry T. Brown (1868, public domain): Five Hundred and Seven Mechanical Movements — scan on archive.org — web — Publisher's page; dimensions are facts — https://archive.org/details/fivehundredseven00browiala
- 507movements.com: Brown's movement No. 353: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_353.html
- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/trip-hammer-mechanism/

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/hammer-head-24x24x40/index.json
API: https://xemstudio.com/api/geometry?object=hammer-head-24x24x40