# SDS-max — Power tool battery platform and accessory interface compatibility

For SDS-max, brand is Heller; system / platform is SDS; compatible with is hammer drills > 5 kg; notes is Cylindrical shank, 18 mm in diameter, two round grooves for axial fixation, three wedge grooves to transfer torque, recorded from its source on 2026-08-11.

- **Item:** SDS-max _(verified: appears in the quote below)_
- **Brand:** Heller _(our reading, not quoted from the source)_
- **System / platform:** SDS _(our reading, not quoted from the source)_
- **Compatible with:** hammer drills > 5 kg _(verified: appears in the quote below)_
- **Notes:** Cylindrical shank, 18 mm in diameter, two round grooves for axial fixation, three wedge grooves to transfer torque _(verified: appears in the quote below)_

## What the source says

> SDS-max Cylindrical shank, 18 mm in diameter, two round grooves for axial fixation, three wedge grooves to transfer torque; for hammer drills > 5 kg

## 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/).