The best metric socket sets make automotive repairs, equipment maintenance, and household projects faster by keeping commonly used sizes organized and ready to use. The right kit depends on your drive size, size range, socket depth, and whether you need impact-rated tools.
We selected 10 metric-focused and combination socket sets ranging from compact 3/8-inch kits to larger 1/2-inch impact collections. Use the guide below to match capacity and durability with the work you actually plan to do.
Best 10 Metric Socket Sets Picks for 2026
Best Overall Coverage
Amazon Basics 201-Piece Mechanic's Socket Tool Set
- 201 pieces with metric and SAE coverage
- Includes three drive sizes and accessory bits
- Chrome-vanadium construction with carrying case
Best For: Broad home, workshop, and general repair coverage
Best Impact Option
VEVOR 3/8-Inch Drive Impact Socket Set
- Metric deep and shallow sockets from 6 to 24 mm
- Heat-treated CR-V steel for impact use
- Includes ratchet, extensions, joint, and adapters
Best For: Automotive and high-torque repair work
Best Compact Metric Set
WORKPRO 32-Piece 3/8-Inch Drive Metric Sockets
- 30 standard and deep sockets from 6 to 20 mm
- 72-tooth ratchet with five-degree swing arc
- Magnetic organizer supports tidy storage
Best For: Routine DIY and home automotive repairs
Best Large-Drive Metric Kit
boen 45-Piece 1/2-Inch Impact Socket Set
- Deep and shallow sockets from 9 to 32 mm
- 1/2-inch drive with CR-V impact construction
- Includes extensions, universal joint, and adapter
Best For: Lug nuts and heavy automotive repairs
Best Full-Range Coverage
TEKTON 42-Piece Metric Socket and Ratchet Set
- Shallow and deep 6–24 mm socket coverage
- 6-point design helps prevent fastener rounding
- Includes ratchet, extensions, universal joint, and case
Best For: Home mechanics needing broad metric coverage
Best Mixed-Standard Impact Set
29-Piece 1/2-Inch Drive Impact Socket Set
- Combines 10–24 mm metric and 3/8–1 inch SAE sizes
- CR-V construction with black phosphate finish
- Includes three extension bars and storage case
Best For: Automotive and equipment work using metric and SAE fasteners
Best Heavy-Duty Size Range
CASOMAN 14-Piece Metric Impact Socket Set
- Includes 11–32 mm shallow metric sockets
- 1/2-inch drive with heat-treated CR-V construction
- 6-point design and permanent laser markings
Best For: Heavy-duty automotive, construction, and industrial fastening
Most Complete Metric Socket Set
64-Piece 3/8-Inch Drive Impact Set
- Deep and shallow 8–22mm metric sockets
- Also includes SAE sizes and ratchet
- Case, extensions, joint, and adapters included
Best For: DIY mechanics wanting the broadest combined coverage
Best Marked Metric Socket Set
- Deep and shallow metric sockets from 8–22mm
- Laser-marked and hard-stamped sizes
- Includes extensions, joint, reducer, and case
Best For: Users prioritizing identification and organized storage
Best Accessory-Rich Metric Socket Set
- Deep and shallow 8–22mm metric coverage
- Ratchet, extensions, joint, reducer, and adapter
- 6-point sockets with marked sizes
Best For: Garage users wanting versatile included attachments
Best Overall Coverage – Amazon Basics 201-Piece Mechanic's Socket Tool Set
If you want broad coverage from one purchase, this 201-piece set is a versatile choice among metric socket sets. It combines metric and SAE sockets with hex keys, screwdriver bits, three drive sizes, and a portable case.
Best For: Home mechanics and DIY users who want an extensive, organized all-purpose tool collection.
Pros:
- Includes metric and SAE sockets in 1/4-, 3/8-, and 1/2-inch drive sizes.
- Chrome-vanadium steel construction with a polished, plated finish.
- Includes hex keys, screwdriver bits, and a carrying case.
Cons:
- The 16.5-pound set is less convenient for lightweight tool storage.
- Its broad assortment may include pieces you do not need for a focused metric setup.
This is the most comprehensive option here for users who want one case to cover varied fastening tasks. Choose it over a smaller dedicated set when versatility matters more than compactness.
Best Impact Option – VEVOR 3/8-Inch Drive Impact Socket Set
For impact-tool work, this VEVOR kit offers both deep and shallow metric sockets from 6 to 24 mm, along with SAE sizes and useful adapters. Its 6-point design and heat-treated CR-V steel suit high-torque automotive and industrial tasks.
Best For: Automotive repairs and users who need metric socket sets compatible with impact drivers.
Pros:
- Includes 20 metric sizes from 6 to 24 mm in deep and shallow formats.
- Heat-treated CR-V steel and black phosphate finish are designed for impact use.
- Includes a ratchet, extension bars, universal joint, and adapters.
- Laser and stamped size markings improve identification.
Cons:
- It includes SAE sockets as well as metric sizes, which may be unnecessary for metric-only buyers.
- The 11-pound case is less compact than a small socket-only kit.
This is a practical choice when impact capability and reach are priorities. The deep/shallow selection and included extensions make it particularly useful for vehicle work and hard-to-access fasteners.
Best Compact Metric Set – WORKPRO 32-Piece 3/8-Inch Drive Metric Sockets
This WORKPRO set keeps the focus on commonly used metric sizes, pairing 15 standard and 15 deep sockets from 6 to 20 mm with a 72-tooth ratchet. Among metric socket sets, its magnetic organizer is a useful space-saving feature for drawers or toolboxes.
Best For: DIYers and home mechanics who want a focused 3/8-inch metric setup with convenient storage.
Pros:
- Provides standard and deep sockets in 15 metric sizes from 6 to 20 mm.
- 72-tooth ratchet operates with a five-degree swing arc.
- Magnetic organizer keeps sockets labeled, accessible, and secure.
- Chrome-vanadium steel sockets have a mirror chrome finish.
Cons:
- It does not include sizes above 20 mm.
- The 3/8-inch drive limits compatibility with larger-drive applications.
- It is a metric-only set rather than a mixed SAE and metric collection.
Choose this kit when everyday metric sizes and tidy storage are more important than maximum range. Its dedicated organizer and compact scope make it easy to keep ready for routine repairs.
Best Large-Drive Metric Kit – boen 45-Piece 1/2-Inch Impact Socket Set
For larger fasteners and lug nuts, this boen kit is a strong large-drive option among metric socket sets. It includes deep and shallow 1/2-inch-drive sockets from 9 to 32 mm, plus extensions, a universal joint, and an adapter.
Best For: Automotive repair, lug-nut removal, and users needing larger metric impact sockets.
Pros:
- Covers 40 deep and shallow metric sockets from 9 to 32 mm.
- Heat-treated forged CR-V steel is designed for high-torque impact use.
- Includes 3-, 5-, and 10-inch extensions, a universal joint, and a drive adapter.
- Laser and stamped markings support quick size identification.
Cons:
- The 1/2-inch drive is less suited to small, delicate fastening tasks.
- It does not include a ratchet handle.
- The set is focused on metric impact sockets rather than mixed SAE coverage.
This kit makes the most sense for heavier automotive work where larger sizes, impact compatibility, and added reach are valuable. Its 9-to-32-mm range is broader for large fasteners than the smaller 3/8-inch option.
Best Full-Range Coverage – TEKTON 42-Piece Metric Socket and Ratchet Set
TEKTON 3/8 Inch Drive 6-Point Socket and Ratchet Set, 42-Piece (6-24 mm) | SKT15201
Check Price On AmazonFor buyers comparing metric socket sets, the TEKTON SKT15201 stands out for its complete 6–24 mm coverage in both shallow and deep 6-point sockets. Its 3/8-inch drive format, ratchet, extensions, and universal joint make it a versatile choice for general automotive and hand-tool work.
Best For: Home mechanics and automotive tasks requiring broad metric size coverage.
Pros:
- Includes shallow and deep sockets from 6 to 24 mm.
- 6-point openings and radiused corners help reduce fastener round-off.
- Includes an 8-inch quick-release ratchet, extensions, and universal joint.
- Large stamped markings and a carrying case support easy identification and storage.
Cons:
- Uses a 3/8-inch drive rather than the higher-torque 1/2-inch format.
- Does not include impact-rated sockets.
With 38 sockets spanning the same complete metric range in shallow and deep profiles, this is the most comprehensive option here for everyday hand-tool use. The alloy-steel construction, polished finish, and no-time-limit warranty further support its long-term appeal.
Best Mixed-Standard Impact Set – 29-Piece 1/2-Inch Drive Impact Socket Set
This mixed SAE and metric set is a practical pick among metric socket sets when you also work on standard-size fasteners. It uses a 1/2-inch drive and CR-V construction for automotive repairs, equipment maintenance, and other jobs suited to an impact wrench.
Best For: Mechanics who need metric and SAE impact sockets in one organized set.
Pros:
- Includes metric sizes from 10–24 mm plus SAE sizes from 3/8 to 1 inch.
- Black phosphate CR-V construction is designed for high durability.
- Includes 3-, 5-, and 10-inch extension bars.
- Laser markings and a plastic packout case aid identification and transport.
Cons:
- The set contains 29 pieces, so its metric coverage is less extensive than a dedicated 6–24 mm set.
- No ratchet is listed among the included components.
The combination of 1/2-inch drive, impact-oriented construction, extensions, and dual measurement systems makes this a flexible shop set. It is especially useful when a single socket kit needs to cover both metric and SAE repair work.
Best Heavy-Duty Size Range – CASOMAN 14-Piece Metric Impact Socket Set
CASOMAN 14 Pieces 1/2-Inch Drive Shallow Impact Socket Set, Metric, 6-Point, 11mm to 32mm
Check Price On AmazonThe CASOMAN CS164EU is a focused choice for metric socket sets built around 1/2-inch-drive impact work. Its 14 shallow 6-point sockets cover 11–32 mm, emphasizing common medium and larger sizes for automotive, construction, and industrial applications.
Best For: Impact-wrench users who primarily need larger metric shallow sockets.
Pros:
- Covers 14 metric sizes from 11 to 32 mm, including 27, 30, and 32 mm.
- Drop-forged, heat-treated chrome vanadium steel is paired with a black phosphate finish.
- 6-point flank-drive design grips the flat sides of fasteners.
- Permanent laser-etched markings support quick size selection.
Cons:
- Includes only shallow sockets.
- Does not cover smaller sizes below 11 mm or include a ratchet or extensions.
- The supplied notes list a one-year quality warranty.
This set is narrower than a full-range metric kit, but its 1/2-inch drive and larger size selection make it well suited to heavier-duty fastening. ANSI performance compliance and clear markings add useful confidence for shop and jobsite use.
Most Complete Metric Socket Set – 64-Piece 3/8-Inch Drive Impact Set
For shoppers comparing metric socket sets, this 64-piece kit stands out for combining deep and shallow metric coverage with SAE sizes and a ratchet handle. Its 3/8-inch drive format, impact-rated construction, extensions, universal joint, and storage case make it a versatile option for automotive and garage work.
Best For: DIY mechanics and users who want broad metric and SAE coverage in one organized kit.
Pros:
- Includes deep and shallow metric sockets from 8–22mm, plus SAE sizes from 5/16–1 inch.
- Chrome vanadium steel, heat treatment, phosphate coating, and a 6-point design support demanding use.
- Includes a 72-tooth ratchet, extensions, universal joint, reducer, drill adapter, and blow-molded case.
Cons:
- The large 64-piece assortment may be more than needed for basic socket work.
- The supplied metric range starts at 8mm and tops out at 22mm.
This is the strongest all-around choice when you want metric socket sets with both broad size coverage and useful accessories. Laser-etched markings and a dual-lock case add practical convenience for regular workshop use.
Best Marked Metric Socket Set – CASOMAN 49-Piece Impact Set
This CASOMAN kit is a practical pick among metric socket sets for users who want standard 3/8-inch drive impact sockets in both deep and shallow formats. It covers 8–22mm metric sizes, adds SAE sockets and key accessories, and comes in a case designed for transport and organization.
Best For: Automotive, construction, and industrial users seeking a clearly labeled, standard-size impact socket assortment.
Pros:
- Provides deep and shallow metric sockets from 8–22mm, along with 5/16–3/4-inch SAE sizes.
- Drop-forged, heat-treated chrome vanadium steel has a corrosion-resistant black phosphate finish.
- Includes 3- and 6-inch extensions, universal joint, reducer, adapter, and carrying case.
- Uses both high-contrast laser markings and hard-stamped size labels.
Cons:
- Its 49-piece count is smaller than the 64-piece alternative in this roundup.
- The listed metric selection omits 20mm and sizes above 22mm.
Choose this set if easy size identification and straightforward organization matter most. The ANSI performance claim and limited lifetime warranty add reassurance, while the 6-point sockets are suited to torque-focused work.
Best Accessory-Rich Metric Socket Set – 50-Piece 3/8-Inch Drive Kit
This 50-piece kit is one of the more accessory-focused metric socket sets, pairing deep and shallow 8–22mm sockets with a ratchet handle, extensions, universal joint, reducer, and hex-shank adapter. Its 6-point design and black-phosphated chrome vanadium construction target automotive repairs, maintenance, and garage projects.
Best For: DIY garage users and mechanics who want a complete 3/8-inch drive kit with multiple connection options.
Pros:
- Includes both deep and shallow metric sockets from 8–22mm plus a matching SAE assortment.
- Comes with a quick-release ratchet, two extension bars, universal joint, reducer, and impact adapter.
- Heat-treated chrome vanadium steel and black phosphating support durability and corrosion resistance.
- High-contrast markings and a compact case help with identification and storage.
Cons:
- The metric range does not extend beyond 22mm.
- The 5.2kg listed weight may be less convenient for users seeking a lightweight kit.
This set makes sense when included adapters and accessories are as important as socket coverage. It offers a well-rounded selection for tire changes, mechanical work, and general automotive projects without requiring separate purchases for common attachments.
How We Picked the Best Metric Socket Sets
We compared these kits by metric size coverage, drive compatibility, socket depth, construction, included accessories, storage, and overall versatility. Sets with both shallow and deep sockets are useful for general automotive work, while impact-rated options are better suited to impact wrenches and stubborn fasteners. We also considered whether a kit includes a ratchet, extensions, adapters, or both SAE and metric sizes.
Quick Comparison
| Best For | Recommended Type | What to Look For |
|---|---|---|
| General home repairs | 3/8-inch drive set | 6-point sockets, ratchet, extensions, and common sizes |
| Automotive maintenance | Mixed shallow and deep set | 8–24 mm coverage and durable chrome-vanadium steel |
| Heavy-duty fasteners | 1/2-inch impact set | Impact-rated sockets, larger sizes, and six-point profiles |
| Maximum versatility | Combination SAE and metric kit | Broad size range, adapters, and organized storage |
Key Buying Factors for Metric Socket Sets
Drive Size
A 3/8-inch drive is the most versatile choice for common automotive and household repairs. Choose 1/2-inch drive when you routinely work with larger fasteners or use a high-torque impact wrench. Smaller 1/4-inch drives are useful for tight spaces but are less common in these larger kits.
Socket Size and Depth
Check the actual metric range rather than relying on the piece count. A set covering roughly 8–24 mm handles many everyday jobs, while larger 1/2-inch kits are preferable for wheels, suspension components, and heavy equipment. Deep sockets reach recessed nuts; shallow sockets provide better clearance in confined areas.
Construction and Compatibility
Chrome-vanadium steel is common for hand-tool sockets. Impact sockets should be specifically rated for impact use and are typically finished in black oxide or a similar protective coating. Six-point sockets grip fastener flats more securely and reduce the chance of rounding.
Storage and Accessories
A sturdy case helps prevent missing sizes and makes transport easier. Ratchets, extension bars, universal joints, and adapters add practical value, but they should not replace a useful core size range. Confirm that the included accessories match your tools and intended drive size.
Who Should Buy Which Metric Socket Sets?
Choose a compact 3/8-inch set if you mostly handle household maintenance, bicycles, small engines, or routine car repairs. Select a broad combination kit if you want one portable case for both SAE and metric fasteners. For lug nuts, suspension work, and high-torque applications, prioritize a 1/2-inch impact set with deep, six-point sockets. If you already own a ratchet and only need larger sizes, a socket-only impact set can provide better value and avoid duplicate tools.