Looking for the Best 21Mm Socket available to buy right now on Amazon but don’t want to have to do all the research on the pros and cons of the different types of 21Mm Socket?
Pop Expert have put together this list of the top 10 selling 21Mm Socket on Amazon – sorted by overall popularity and positive consumer reviews.
The Pop Expert list of top selling 21Mm Socket is the ideal place to start when you are trying to find the Best 21Mm Socket for your neeeds.
Popular 21Mm Socket on Amazon
Details on the Best 21Mm Socket
Bestseller No. 1
TEKTON 1/2 Inch Drive x 21 mm Deep 6-Point Impact Socket | SID23121
- Two Size Markings – The size is marked in two ways on every socket—both as a high-visibility laser marking and a permanent stamped marking
- Full-Length Socket Well – While the overall socket is a shallow length, the interior well extends fully into the socket, which allows for better fastener engagement in more situations
- Works with Friction Ring or Detent Pin Anvils – Smooth walls inside the drive end and a detent pin hole make the sockets compatible with both drive tool anvil types
- Prevents Fastener Round-Off – Radiused corners prevent fastener round-off by applying force to a fastener's flat sides, rather than its corners
- High-Performing Steel Alloys – This socket is made from 50BV30 Chromium-Vanadium (Cr-V) and has a corrosion-resistant manganese phosphate coating
Bestseller No. 2
EGOFIX 1/2" Drive Deep Impact Socket, 21mm Socket, CR-MO, Metric, 6 Point
- 【Heavy-duty Material】: Professional-grade axle nut socket gives ultra-flexibility and tightness. All sockets are made of Chromium Molybdenum (CR-MO), with black phosphoric acid coating on each socket surface, which greater shatter-resistant, rust stains prevention than those made from CR-V steel. Each has highly visible laser-etched marking for easy identification even in low light conditions.
- 【6-Point Socket Design】: 6-point flank drive for tight hold without damaging fastener corners. For easy removal of axle shaft nuts to meet your job requirements.
- 【Great Choice】: This deep socket is ideal choice for any Home maintenance, Garage and Automobile repair, DIY home improvement.
- 【Highly compatible】：1/2-inch drive 21mm impact socket is made to work with a wide range of tools.
- 【High-quality Experience】：We have full confidence in our socket products and believe that they can improve your work efficiency and become a reliable assistant in your daily life.
Bestseller No. 3
TEKTON 1/2 Inch Drive x 21 mm Deep 6-Point Socket | SHD23121
- Deep 6-point socket opening provides an ideal, exact fit for hex-shaped fastener heads
- Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round-off
- Deep-length sockets reach into wells and accommodate the excess threads of longer shafts
- Extra-large die-stamped size markings are easy to read and can’t wear off
- Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion
Bestseller No. 4
CRAFTSMAN Shallow Impact Socket, Metric, 1/2-Inch Drive, 21mm (CMMT15868)
- CORROSION RESISTANT: Impact Socket Has Black Oxide Finish
- INCREASED TORQUE: 6-Point Impact Sockets 1/2 Drive with fastener
- QUICK SIZE IDENTIFICATION: Metric Sockets Come with Large Markings
- Meets or Exceeds ASME Specifications
- Full Lifetime Warranty, refer to "Warranty & Support" section below for full details
Bestseller No. 5
Capri Tools 21 mm Stubby Impact Socket, 1/2 in. Drive, 6-Point, Metric (CP55421)
- These stubby impact sockets are 20% shorter than shallow length sockets, making them perfect for working in tight spots
- Premium Chrome Molybdenum steel tempered with our proprietary heat treatment process to withstand more torque from power tools
- Expertly coated with manganese phosphate, the preferred coating in military and aerospace, which offers superior protection and corrosion resistance compared to black oxide coating on other impact sockets
- 6-point WaveDrive design grips fasteners more tightly than traditional design, preventing fastener rounding and giving you more leverage
- Single stubby length, 1/2 in. drive, 21 mm size impact socket
Newest 21Mm Socket
New
Lisle Corp - HEX Twist Socket 21MM
- Socket Size: 21mm
- Drive Size: 1/2" square drive
- Design: Dual-ended – 6-point hex + twist extractor
- Material: Chrome moly steel (impact-rated)
- Made in: USA
New
ChuyTrading 5Pcs 12 Point 1/2 Drive Strut Nut Socket Set, Suspension Strut Tool, 18mm 19mm 21mm 22mm 24mm for Hex Wrench 6496, Premium Aluminum Alloy Anti - Rust Sockets for Strut Removal and
- COMPLETE SET FOR VARIOUS NEEDS: This strut nut socket set includes 5 pieces (18mm, 19mm, 21mm, 22mm, 24mm) to handle different sizes of strut nuts, making it a versatile tool for automotive repair and suspension work. The 12-point design ensures a secure grip on nuts for efficient removal and installation.
- DURABLE ALUMINUM ALLOY CONSTRUCTION: Made from premium aluminum alloy, these sockets are built to last with anti-rust and anti- properties. They withstand heavy use in demanding environments, ensuring long-term reliability for professional mechanics and DIY enthusiasts.
- EASY TO USE WITH HEX WRENCH: Designed for hex wrench 6496, these 1/2-inch drive sockets allow a 90° hex key to hold the strut while tightening to the correct torque with a torque wrench (hex key not included). The ergonomic design ensures smooth operation during repairs.
- IDEAL FOR SUSPENSION STRUT WORK: Perfect for removing or installing support nuts in suspension systems, these sockets are essential for automotive maintenance. Whether you're working on cars, trucks, or other vehicles, this set provides the precision tools you need.
- RELIABLE AND STANDARD-COMPLIANT: Built to meet factory quality control standards, these sockets ensure accurate torque application and safe usage. The set is packaged conveniently for easy storage and transport, making it a must-have for any mechanic's toolbox.
New
Efficient 1/2inch ExtendedHex Socket 21mm 1/2"Drive Quick Fastening
- Suitable for efficient socket engagement, the Socket minimizes slippage and distributes stresses over a large area. Quick and easy tightening and loosening for your projects
- The 1/2inch Metric Socket is a tool for your projects
- Suitable for professional technicians and enthusiasts in mechanical repairs, auto maintenance, and home improvement projects
- Craft from 35k carbon steel, its constructions ensures long lasts use and resistance to rusts
- This socket can be used in various scenario, including engine repairs and furniture installation
New
Wheel Nut Thin Wall Deep Impact Socket Set 17mm 19mm 21mm – Premium Quality Steel Wheel Nut Sockets for Impact and Garage Use – Includes Plastic Inserts and Storage Box for Easy
- Wide Applicability: This socket set includes 17mm, 19mm, and 21mm sockets ideal for garage use. Please verify your wheel nut sizes and tool interface before use to ensure a proper match.
- Protective Design: The plastic insert inside the socket protects the front face of the wheel nuts.
- Impact Use: These deep sockets are suitable for impact use and are ideal for garage use with wheel nuts.
- Durable Steel: Made of premium quality steel, these sockets are solid and durable to meet your different needs.
- Easy Organization: With the storage box, these sockets are easy to carry and organize so you can use the tools anytime you want.
New
Klanata 5 Piece Spline Lug Nut Key Wheel Lock Remover Socket Set 17mm 19mm 21mm 22mm Heavy Duty Molybdenum Steel Wheel Lock Removal Tool Kit for Hub Nuts Bolts Screws and Various
- Wide Applicability: This lug nut remover kit includes four sleeve sizes 17mm, 19mm, 21mm, and 22mm designed for wheel hub nuts on most vehicle . It is suitable for removing locking nuts or regular nuts and also works for bolts and screws on furniture or . Please verify your specific nut size before use.
- Professional Grade Hardness: Engineered from high hardness molybdenum steel and enhanced by a heat treated process. These tools are built to maintain their shape under high torque loads, providing excellent wear resistance and long term efficiency for demanding removal tasks.
- Anti Slip Grip: Each socket features precise internal bite patterns that provide a firm grasp on wheel hub locks even in greasy or humid conditions. This design minimizes the risk of slipping, which increases overall work efficiency and ensures user safety during operation.
- Organized Portable Case: The set includes a portable storage box where each sleeve is stored in an orderly manner for quick identification and retrieval. This durable carrying case protects the tools from damage and collisions, making it easy for professional mechanics or DIY owners to transport.
- Multi Functional Utility: This versatile set serves as more than just a wheel lock remover. It is highly effective for disassembling various damaged bolts, nuts, and screws found on machinery, equipment, and household furniture, making it a comprehensive solution for any automotive or home toolbox.