Ifixit has Black Friday promotion for its famous repair toolkits:
Mako 64-bit driver kit $24.99
Manta 112-bit driver kit $49.99
Pro Tech toolkit + Magnetic mat bundle $59.99
Mahi driver kit $24.99
Free shipping for $25+ purchase with promo code BLUEANDBLACK19
Sale lasts only till December 2, 2019.
These toolkits contain different driving bits for repairing/opening many electronic devices which use proprietary screws (e.g. tablets, laptops, phones, Apple devices, etc)
How-to-repair guide can also be found on their website for many electronic devices.