Exact model guide · CM372 · SKU 80459
UGREEN CM372 80459 38-in-1 Precision Screwdriver Set
A compact precision toolkit containing 36 labelled 4mm CR-V driver bits, a 95mm aluminium handle and a 60mm extension shaft—38 pieces in total—arranged in a push-open stand case for small electronics and household precision fasteners.
Product overview
Overview
UGREEN CM372 is built around interchangeable 4mm precision bits for phones, laptops, watches, cameras and other small equipment. The labelled tray includes common Phillips, slotted, Torx, hex and several security-style profiles such as triangle, Y/tri-wing, pentalobe and U/fork. Use the markings on the actual tray to select profile and size; never force an approximate fit.
The aluminium handle has a rotating top cap, knurled grip area and magnetic bit holder. The separate 60mm extension reaches recessed screws but increases leverage, so it should not be used to apply excessive torque. Exact dimensions shown are approximately 95mm handle length, 11mm maximum handle diameter, 60mm extension length and 19.5mm bit length.
The push-open case keeps 36 bits visible and organised and can stand for easier selection. Small bits are easily lost and can damage a circuit if left inside a device, so count the set before and after work. Opening consumer electronics can disturb adhesives, seals and warranty/service conditions.
Verified highlights
Key features
- Verified 38-piece composition: 36 precision bits + 1 handle + 1 extension shaft.
- Bit material: chrome-vanadium (CR-V) precision bits identified by the exact artwork.
- Handle: lightweight aluminium alloy with knurled grip, rotating cap and magnetic bit retention.
- Extension: 60mm shaft for recessed screws and confined areas.
- Organised case: labelled slots and push-open/standing design.
- Profile range: common Phillips, slotted, Torx and hex plus specialist security profiles; exact sizes are read from the tray.
- Small-device focus: for precision fasteners, not high-torque construction hardware.
Know the exact controls and roles
Tool, bit and case map
The set count and component roles are physical and unambiguous in the exact product artwork.
- 36 labelled CR-V bits: select the exact profile and size that fully seats in the screw recess.
- 95mm aluminium handle: applies controlled hand torque; the rotating cap supports fingertip turning.
- Magnetic holder: retains the installed bit and helps controlled placement; it does not magnetise every screw reliably.
- 60mm extension shaft: reaches recessed fasteners while preserving the 4mm bit interface.
- Push-open case: organises components and can stand upright for selection.
- Tray labels: are the authoritative size guide for the supplied bits; avoid inventing a size from appearance alone.
Where it makes sense
Use scenarios
Use the kit for clean, accessible precision screws after confirming serviceability, safety and correct bit fit.
- Remove compatible screws from selected smartphones, laptops, tablets and small computer accessories during authorised repair.
- Open battery compartments, camera accessories, watches, spectacles, toys or small household items that use one of the supplied profiles.
- Reach a recessed low-torque screw using the 60mm extension when the handle cannot enter directly.
- Organise a repair bench where labelled bit storage reduces mix-ups between visually similar Torx, pentalobe and hex sizes.
- Tighten a small fastener to snug hand tightness after reassembly, following the device’s documented torque where available.
- Not for live mains equipment, automotive wheel/engine fasteners, seized screws, impact tools or safety-critical structural work.
A dependable first connection
Setup and usability guidance
Prepare the device and work area before touching the first screw.
- Back up important data, shut the device down, unplug every cable and remove a removable battery where the manufacturer permits.
- Discharge static safely and use an ESD-safe work surface for exposed electronics; keep liquids and loose metal away.
- Inspect the screw head under good light and choose the exact tray-labelled bit that fills the recess without play.
- Insert the bit fully into the magnetic handle or extension, hold the driver straight and apply gentle downward pressure.
- Break the screw free with controlled torque. Stop if the bit cams out, the head deforms or adhesive/thread-lock resistance seems excessive.
- Arrange screws by location and length because a longer screw installed in the wrong hole can puncture or damage a board.
- Reassemble in reverse order, tighten only to the device maker’s guidance and count all 36 bits, handle, extension and removed screws.
Match the whole chain
Compatible devices and systems
Compatibility is defined by exact fastener profile and size, not merely the device category pictured.
- Small electronics and household products using one of the 36 supplied 4mm bit profiles and sizes.
- Selected phone and laptop fasteners including common specialist profiles, after checking the manufacturer service guide.
- Camera, watch, toy, spectacle and small-appliance screws within a low manual torque range.
- Recessed fasteners reachable with the supplied 60mm extension.
- Not insulated or voltage-rated for electrical work on energised circuits.
- Not suitable for large sockets, drill chucks, impact drivers or high-torque automotive/construction fasteners.
Capabilities
What this product does
- Provides 36 interchangeable precision bit choices in one labelled case.
- Uses a rotating-cap handle for controlled fingertip pressure and turning.
- Extends reach by 60mm for selected recessed screws.
- Magnetically retains the bit in the driver holder.
- Keeps small components organised in dedicated labelled positions.
- Supports careful manual disassembly and reassembly of compatible low-torque fasteners.
Clear boundaries
What this product does not do
- It does not insulate the user from mains electricity or certify a circuit safe.
- It does not include a powered driver, ratchet, torque limiter or calibrated torque reading.
- It does not guarantee every phone, laptop or game console uses a supplied bit.
- It does not overcome thread-lock, corrosion or a stripped screw without risk of damage.
- It does not preserve a device warranty, water-resistance seal or adhesive closure after opening.
- It does not replace manufacturer service instructions, ESD equipment or model-specific opening tools.
Good practice
What to do
- Power down, unplug and make the device electrically safe before disassembly.
- Use ESD precautions and a bright, uncluttered surface with a parts tray.
- Match profile and size exactly and keep the driver aligned with the screw axis.
- Photograph each stage and separate screws by location and length.
- Clean bits with a dry cloth and return every component to its labelled slot.
- Stop and seek professional service when a battery is swollen, a seal is critical or a screw begins to strip.
Avoid these mistakes
What not to do
- Do not work on live mains equipment; the handle and bits are not insulated electrician’s tools.
- Do not use pliers on the handle, a hammer on the extension or the bits in an impact/power driver.
- Do not substitute a near-fit bit or continue after it cams out of the screw head.
- Do not puncture, bend or pry near a lithium battery with a screwdriver bit.
- Do not overtighten tiny screws or swap screw lengths between holes.
- Do not leave loose bits or screws inside electronics or within reach of children.
Important safety and performance notes
Warnings and limitations
Precision repair can expose sharp edges, stored electrical energy and lithium cells even after a device is switched off.
- Small bits and screws are choking and ingestion hazards; keep the kit closed and away from children.
- Lithium batteries can ignite if punctured, crushed or shorted. Do not work on swollen or damaged packs.
- Capacitors in some power supplies and appliances can retain hazardous voltage after unplugging; use qualified service.
- Opening a water-resistant product can destroy its seal unless correct replacement adhesive, fixtures and tests are used.
- The extension increases leverage and can strip a tiny screw more easily; use only gentle hand torque.
- CR-V bits are hard but can chip if twisted, side-loaded or used in the wrong profile; wear appropriate eye protection where fragments are possible.
Keep it working and solve common issues
Care, troubleshooting and buying checklist
A bit that does not seat securely is a compatibility warning, not a cue to apply more force.
- Bit slips: clean the recess, verify profile and size, keep the tool vertical and stop before the head rounds.
- Screw will not move: check for thread-lock, hidden clips or reverse-thread guidance; do not add uncontrolled leverage.
- Bit will not stay: clean the magnetic holder and bit shank, insert fully and check for debris or damage.
- Cannot reach: install the 60mm extension only if it can remain aligned; otherwise use a model-specific tool.
- Case count is short: inspect the work surface and device interior before power-up; never energise equipment with a loose bit inside.
- Reassembly gap: do not force the housing; a cable, clip, seal or wrong-length screw may be misplaced.
- Buying check: compare the exact fastener labels in the media with the device service documentation and recognise the low-torque, non-insulated scope.
Exact-model details
Technical specifications
In the box
Package contents
The exact artwork resolves the 38-in-1 count as 36 bits, one handle and one extension. Electronics shown in use are not included.
- 36 × labelled 4mm CR-V precision screwdriver bits
- 1 × 95mm aluminium precision driver handle
- 1 × 60mm extension shaft
- 1 × labelled push-open storage/stand case
Tap a question to expand
Product-specific FAQ
Model verification
Research and source note
This exact-model guide was checked against the live Shopify product gid://shopify/Product/7438691991651, its attached UGREEN-owned Shopify CDN media, and the UGREEN India model reference at https://www.ugreenindia.com/products/ugreen-38-in-1-aluminium-alloy-screwdriver-set-80459.
Only functions that could be reconciled with the exact model, physical layout and retained artwork are stated as capabilities. Speed, range, battery runtime and network-assisted location estimates remain dependent on the complete device chain and operating conditions.
Every retained image is attached to this exact live Shopify product record and is presented as a large single contextual figure. Images with contradictory duration, unrelated product copy, uncertain family claims or misleading absolute performance language are omitted.
- The current official product page body contains unrelated USB-C dock text; none of that copy is used for this screwdriver set.
- Exact tray labels guide the bit sizes; no unverified exhaustive size list is invented from partially legible artwork.
- Eight large contextual figures are selected from the exact live SKU 80459 Shopify media set.
