# Morse — Power tool battery platform and accessory interface compatibility For Morse, brand is Heller; compatible with is stationary machine tools; notes is Tapered cylindrical shank with 2.8 - 3° taper angle, recorded from its source on 2026-08-11. - **Item:** Morse _(verified: appears in the quote below)_ - **Brand:** Heller _(our reading, not quoted from the source)_ - **Compatible with:** stationary machine tools _(verified: appears in the quote below)_ - **Notes:** Tapered cylindrical shank with 2.8 - 3° taper angle _(verified: appears in the quote below)_ ## What the source says > Morse Tapered cylindrical shank with 2.8 - 3° taper angle, primarily used in stationary machine tools ## 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/).