App icons

Hello people!!!

I'm going to develop a new app for neighbors community and local business so in the app, the users will find some categories of services they can choose and inside every category the related services.

Now I'm thinking about the icons I want to make, and I was thinking to add a "hand" to every icon. I'll explain myself better with an example. Let's say I'm looking for someone to help me out with "furniture assembling": the options for the icon are 1) a simple screwdriver or 2) a hand holding the screwdriver, cause I thought the hand might better represent the help a person is giving.

Now, I got some concerns about this idea:

1. will the hand be too repetitive as an element?

2. will the icon be more scalable and understandable without adding the hand?

Thank you in advance for your honest opinions :-)