It's ok and they work but they're not the best. If you want a budget kit (and believe me you want a kit for your manifold, 20+ years of HVAC experience here) then you can go with them. if you have to spend more something like yellow jacket with 6" extension.
Cordiant Winter Drive 2 255/55 R18 109T
33 Review
Rechargeable screwdriver OA-3,6F (433.0.2.00), 3.6 V, 1.3 Ah Li-ion, blister
46 Review
Bit and socket set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
46 Review
Xiaomi Mi x Mijia Wiha Precision Screwdriver Set (DZN4000CN), 25 pcs
34 Review