# CYL — Power tool battery platform and accessory interface compatibility

For CYL, brand is Heller; notes is Cylindrical shank, with same diameter as body up to a certain diameter, after that: reduced shank, recorded from its source on 2026-08-11.

- **Item:** CYL _(verified: appears in the quote below)_
- **Brand:** Heller _(our reading, not quoted from the source)_
- **Notes:** Cylindrical shank, with same diameter as body up to a certain diameter, after that: reduced shank _(verified: appears in the quote below)_

## What the source says

> CYL Cylindrical shank, with same diameter as body up to a certain diameter, after that: reduced shank

## Source

- https://www.hellertools.com/en/service/shanks

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Power tool battery platform and accessory interface compatibility](https://referencesource.org/power-tool-battery-compatibility/).