Top 10 21MM Socket 1/2 Drive 6 Point – Triple Square Drive Sockets

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1. Craftsman


Metric, CRAFTSMAN Deep Impact Socket, 1/2-Inch Drive, 21mm CMMT16081

Craftsman #ad - Quick size identification: Impact sockets 1/2 drive comes with large markings. Increased torque: 6-point impact socket comes with fastener. Meets or exceeds ASME Specifications. Corrosion resistant: Metric Socket have a black oxide finish.
BrandCraftsman #ad
ManufacturerCRAFTSMAN #ad
Part NumberCMMT16081

2. Craftsman


Metric, CRAFTSMAN Shallow Impact Socket, 1/2-Inch Drive, 21mm CMMT15868

Craftsman #ad - Meets or exceeds ASME Specifications. Quick size identification: Metric Sockets Come with Large Markings. Increased torque: 6-Point Impact Sockets 1/2 Drive with fastener. Corrosion resistant: Impact Socket Has Black Oxide Finish.
BrandCraftsman #ad
ManufacturerCRAFTSMAN #ad
Part NumberCMMT15868



1/2 Inch Drive x 21 mm Deep 6-Point Socket

TEKTON #ad - Overall socket length: 3. 02 in. Socket end diameter: 1. 1 in. Drive end Diameter: 1. 1 in. Socket well Depth: 1. 34 in. Four detent grooves provide a secure connection with the drive tool.

Deep-length sockets reach into wells and accommodate the excess threads of longer shafts. Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round-off. Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion. 6-point socket opening provides an ideal, exact fit for hex-shaped fastener heads. Beveled inner rim of the socket opening helps guide it smoothly onto fasteners. Extra-large die-stamped size markings are easy to read and can’t wear off.
BrandTEKTON #ad
ManufacturerTEKTON #ad
Height1.1 Inches
Length3.1 Inches
Weight0.39 Pounds
Width1.1 Inches
Part NumberSHD23121
WarrantyNo time limits, no receipts:

4. Crescent


Crescent 1/2" Drive 6 Point Deep Metric Socket 21mm, CDDS80N

Crescent #ad - Mirror polish finish that’s easy to Wipe clean. Sockets feature off corner loading technology to virtually eliminate fastener rounding. Made of chrome vanadium steel alloy specially formulated and heat-treated for strength and corrosion-resistance. Tools meet stringent new ANSI and ASME specifications and come with a full Satisfaction guarantee. Nickel chrome plated for long lasting protection.
BrandCrescent #ad
ManufacturerCrescent Tools #ad
Height5.65 Inches
Length1.6 Inches
Weight0.44 Pounds
Width1.15 Inches
Part NumberCDDS80N

5. uxcell


Cr-V, uxcell 1/2-Inch Drive 21mm 6-Point Shallow Socket, Metric

uxcell #ad - Applicationswidely used in DIY hand-making, household maintenance, and most general repairs. Mirror chrome plated finish to resist corrosion. 6-point sockethigh-torque design grips flat sides of fastener, not corners, preventing round-off. Size1/2-inch drive, 21mm 6-point socket, 38mm 1. 5-inch total long. Standard-length socketShallow well and slim walls allow socket to fit into tight, narrow spaces. Materialchrome vanadium steel construction for strength and durability.
Branduxcell #ad
Manufactureruxcell #ad
Height1.97 Inches
Length5.51 Inches
Width3.94 Inches
Part Numbera18011100ux0042



84579N, GEARWRENCH 1/2" Drive 6 Pt. Deep Impact Socket, 21mm

GEARWRENCH #ad - Chrome molybdenum alloy steel CR-MO for exceptional strength and durability. Manufactured in China. Color: Black.
ManufacturerApex Tool Group #ad
Height6 Inches
Length2.05 Inches
Weight0.65 Pounds
Width1.5 Inches
Part Number84579N
WarrantyStandard Limited Lifetime



Deep, CR-MO, 6 Point, Metric, RIGOR 11505 21mm Non-Marring Lug Nut Socket | Wheel Protector Impact Socket | 1/2" Drive

RIGOR #ad - Durability: constructed from high quality Chromium-molybdenum Cr-Mo steel with precision forging and heat treatment which makes the socket durable and long-lasting.

Multiple designs: hollow core design for using on long lug nut; Non-Marring Sleeve and Core protect the rim and lug nut. Strong sleeve: pp+tpr sleeve is oil resistant, weathering resistant -40 to 176 ˚F, and more flexible than regular PT material to improve the broken issue. Long-life time: over 2500+ life cycles before failure based on a 390 ft/lb Torque Test; Meet or exceed ANSI standard. Easily identify: Color coded and Laser etched for easy identification.
BrandRIGOR #ad
ManufacturerRIGOR TOOLS #ad
Height1.18 Inches
Length3.35 Inches
Weight9.64 ounces
Width1.18 Inches
Part Number11505
WarrantyLimited Life Time Warranty

8. Jetech


Jetech 1/2-Inch Drive 21mm Deep Impact Socket with 6-Point Design, Metric, Heat-Treated Chrome Molybdenum Alloy Steel

Jetech #ad - Cr-mo alloy steel - cr-mo impact socket features with added strength, higher working temperatures and corrosion resistance. Cold forging & heat treatment - Cold forging and heat treatment greatly improve the performance of the socket with enhanced hardness, increased wear-resistance and lifespan.

Extra depth - provide more space to accommodate longer bolts and wider applications to facilitate your work. Black phosphating - A fine and dense coating brings more corrosion and wear resistance for longtime use. Radius corner design - the lifespan of both the fastener and socket will be greatly prolonged with the force distributed to the inwall. It’s much stronger to stand greater impact force than chrome vanadium ones.
BrandJetech #ad
ManufacturerJetech #ad
Height3.03 Inches
Length1.14 Inches
Width1.14 Inches
Part NumberFK1ov2-D21

9. Performance Tool


21mm, Performance Tool W32421 1/2 Drive 6-Point Socket

Performance Tool #ad - Socket openings are designed to reduce fastener rounding. Polished nickel chrome plated finish resists corrosion. Recessed edges. Chrome vanadium alloy steel construction for strength and durability. Large stamping for quick identification.
BrandPerformance Tool #ad
ManufacturerWilmar #ad
Height1.7 Inches
Length0.9 Inches
Weight0.4 Pounds
Width5.4 Inches
Part NumberW32421



DEWALT DWMT74551OSP 12 Point 1/2" Drive Deep Socket 21MM

DEWALT #ad - Knurled control Ring for added grip when handling the socket. Full polish chrome Vanadium finish helps prevent chipping and flaking under toughest environments. Hard stamped markings to prevent loss of identification over time. Direct torque Technology helps prevent rounding of fasteners. Chamfered open end for easier engagement of fasteners.
BrandDEWALT #ad
ManufacturerDewalt #ad
Height1.4 Inches
Length3.13 Inches
Width1.4 Inches
Part NumberDWMT74552B
WarrantyLimited lifetime warranty