# Is it possible to select multiple face for the helical operation at once?

**URL:** <https://forum.grid.space/t/is-it-possible-to-select-multiple-face-for-the-helical-operation-at-once/2904>\
**Category:** CAM\
**Created:** [January 16, 2026, 1:25pm UTC](https://forum.grid.space/t/is-it-possible-to-select-multiple-face-for-the-helical-operation-at-once/2904 "2026-01-16T13:25:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Leo\_Phan](https://forum.grid.space/user_avatar/forum.grid.space/leo_phan/32/2859_2.png) [@Leo\_Phan](https://forum.grid.space/u/Leo_Phan)\
**Post date:** [January 16, 2026, 1:25pm UTC](https://forum.grid.space/t/is-it-possible-to-select-multiple-face-for-the-helical-operation-at-once/2904/1 "2026-01-16T13:25:32Z")

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I have a part that i want to cut, and im asking for future reference, is there a way to select a large number of holes for the helical operation? Like a click and drag? i have like 50+ bolt holes that need cutting, but I was just wondering if there was a less tedious way

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**Author:** ![stewart](https://forum.grid.space/user_avatar/forum.grid.space/stewart/32/21_2.png) [@stewart](https://forum.grid.space/u/stewart)\
**Post date:** [January 16, 2026, 3:58pm UTC](https://forum.grid.space/t/is-it-possible-to-select-multiple-face-for-the-helical-operation-at-once/2904/2 "2026-01-16T15:58:16Z")

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at present, only holes for drilling are auto-detected. it’s on my todo list to improve that (allowing arcs) and the selection process for cylindrical faces suitable for helix cuts. if you can share your model with me, I can use that to test any code improvements. thanks

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**Author:** ![Leo\_Phan](https://forum.grid.space/user_avatar/forum.grid.space/leo_phan/32/2859_2.png) [@Leo\_Phan](https://forum.grid.space/u/Leo_Phan)\
**Post date:** [January 17, 2026, 1:38am UTC](https://forum.grid.space/t/is-it-possible-to-select-multiple-face-for-the-helical-operation-at-once/2904/3 "2026-01-17T01:38:22Z")

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[OTB Proto - 03.stl](https://forum.grid.space/uploads/short-url/ju1KdERNH2xlpMS8HXm3MtAvcRR.stl) (241.7 KB)

[Shooter Side Plate.stl](https://forum.grid.space/uploads/short-url/ziVD528pqUBtIAPWl7S1ffZILQN.stl) (279.0 KB)

[OTB Proto - 01.stl](https://forum.grid.space/uploads/short-url/vWGDDdxZfVmSonxVGyptYUhX3Ud.stl) (370.0 KB)

[OTB Proto - 02.stl](https://forum.grid.space/uploads/short-url/4WA2AuKXNgMlu0h5gY1tKZ3TAqE.stl) (284.5 KB)