Broom, mop, shovel and rake handle sizes and the 3/4-5 Acme broom / paint-pole thread — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/broom-and-tool-handles/  (CC BY 4.0)
Basis: Handle makers' and retailers' spec tabs (diameters, lengths); thread from makers who measured about 20 handles
Catalog version: 2026-10-20

Sizes: see table below
- Threaded broom, mop, squeegee and paint-pole handles use a 3/4-5 Acme-style thread (5 threads per inch, 5.08 mm pitch); there is no formal standard, so print slightly under (crest 18.0, root 13.0) and it bites into loose handles.
- Handle diameters seen: 1 in (25.4) aluminium broom handles and angle brooms, 3/4 in (19.05) lobby brooms, 1-1/8 in (28.6) older tapered wood tool handles, 15/16 in (23.8) replacements; lengths 38, 48, 54, 60 in.
- D-grips, fiberglass handle diameters and shovel/rake/hoe handle diameters are not published by the makers: a measured Xem scan is planned (calipers on your own handle work too).
- Adapters (free STL): thread on top, socket below for your handle, a cross pin through the socket; print upright, 100 % infill on the threaded part.

item  inch  mm
broom thread (3/4-5 Acme), crest  0.71  18.0
broom thread, root  0.51  13.0
thread pitch  5 TPI  5.08
aluminium broom handle  1  25.4
lobby broom handle  3/4  19.05
tapered wood tool handle (old)  1-1/8  28.6
tapered wood tool handle (replacement)  15/16  23.8
handle lengths  38 / 48 / 54 / 60  965 / 1219 / 1372 / 1524

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Autodesk forum (maker measurement of ~20 handles): US paint / broom stick thread — web — Publisher's page; dimensions are facts — https://forums.autodesk.com/t5/fusion-design-validate-document/us-paint-or-broom-stick-thread-type/m-p/11973695
- softsolder.com (maker measurement): Broom handle screw thread replacement plug — web — Publisher's page; dimensions are facts — https://softsolder.com/2013/04/01/broom-handle-screw-thread-replacement-plug/
- WebstaurantStore (spec tab): Carlisle 60 in threaded aluminium broom handle, 1 in — web — Publisher's page; dimensions are facts — https://www.webstaurantstore.com/carlisle-sparta-40226ec23-60-gray-threaded-aluminum-broom-squeegee-handle/27140226EC23.html
- Lalema (spec tab): Tapered wood handle 54 in — web — Publisher's page; dimensions are facts — https://www.lalema.com/product/tapered-wooden-handle-54-1-1-8-dia-16630/specs
- Zoro (spec tab): Libman broom handles — web — Publisher's page; dimensions are facts — https://zoro.com/kbmt/libman-broom-handle

Free files (CC BY 4.0, Xem Studio; STEP + STL, 4 parts): https://xemstudio.com/files/hardware/broom-and-tool-handles/index.json
API: https://xemstudio.com/api/geometry?object=broom-and-tool-handles