UGREEN CM372 80459 38-in-1 Precision Screwdriver Set

Overview

The UGREEN CM372 (80459) is a 38-piece precision screwdriver kit for opening and repairing phones, laptops, cameras, watches, toys, spectacles and small appliances. It holds 36 labelled 4 mm bits, a magnetic aluminium handle and a 60 mm extension shaft in a case that stands open, so the right bit is easy to find and put back.

Is it right for you?

• Suits careful hand work on small fasteners at home or in a workshop, including common specialist profiles on phones and laptops.
• Not for high-torque jobs: large sockets, drill chucks, impact drivers or automotive and construction fasteners.
• Not insulated or voltage rated, so not for work on live electrical circuits.

Key features

• 36 chrome-vanadium (CR-V) 4 mm precision bits covering Phillips, slotted, Torx and hex plus specialist security profiles; sizes are marked on the tray.
• 95 mm aluminium alloy handle with a knurled grip, a rotating cap for fingertip pressure and magnetic bit retention.
• 60 mm extension shaft for recessed screws and confined spaces.
• Labelled push-open case that doubles as a stand, 18 × 12 × 3.5 cm, 300 g.

What else you need

Nothing for ordinary use. For device repair, follow the manufacturer’s service guide and use any model-specific opening tools and electrostatic discharge (ESD) protection it calls for.

Before you buy

• Not every phone, laptop or games console uses one of the supplied bits; check the service guide first.
• There is no powered driver, ratchet, torque limiter or torque reading in the kit.
• Opening a device can void its warranty and break a water-resistance seal or adhesive closure; resealing needs the correct adhesive, fixtures and tests.
• Thread-lock, corrosion or a stripped screw cannot be forced without risk of damage, and the extension adds leverage that strips tiny screws more easily. Use gentle hand torque only.
• CR-V bits are hard and can chip if twisted, side-loaded or used in the wrong profile; wear eye protection where fragments are possible.
• Lithium batteries can ignite if punctured, crushed or shorted; do not work on swollen or damaged packs. Capacitors in some power supplies hold dangerous voltage after unplugging; leave those to qualified service.
• Small bits and screws are a choking hazard; keep the case closed and away from children.