Top 10 21mm Deep Socket – Star Drive Sockets

As an Amazon Associate I earn from qualifying purchases.

1. Craftsman

#ad

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

#ad
Craftsman #ad - Corrosion resistant: Metric Socket have a black oxide finish. Quick size identification: Impact sockets 1/2 drive comes with large markings. Meets or exceeds ASME Specifications. Full lifetime warranty, refer to "Warranty & Support" section below for full details. Increased torque: 6-point impact socket comes with fastener.
BrandCraftsman #ad
ManufacturerCRAFTSMAN #ad
Part NumberCMMT16081
ModelCMMT16081

2. TEKTON

#ad

TEKTON 1/2 Inch Drive x 21 mm Deep 6-Point Socket | SHD23121

#ad
TEKTON #ad - Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round-off. Overall socket length: 3. 02 in.

Socket end diameter: 1. 1 in. Drive end Diameter: 1. 1 in. Socket well Depth: 1. 34 in. 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. Beveled inner rim of the socket opening helps guide it smoothly onto fasteners. 6-point socket opening provides an ideal, exact fit for hex-shaped fastener heads. 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.
BrandTEKTON #ad
ManufacturerTEKTON #ad
Height1.1 Inches
Length3.1 Inches
Weight0.39 Pounds
Width1.1 Inches
Part NumberSHD23121
ModelSHD23121
WarrantyNo time limits, no receipts: tekton.com/tool-help

3. Craftsman

#ad

6-Point CMMT99144, CRAFTSMAN Deep Socket, 3/8-Inch Drive, 21mm, Metric

#ad
Craftsman #ad - Meets or exceeds ASME Specifications. Increased accessibility: Deep socket. Increased torque: 6-point metric socket comes with fastener. Full lifetime warranty, refer to "Warranty & Support" section below for full details. Quick size identification: Large Markings. Corrosion resistance: Deep socket comes with full polish chrome finish.
BrandCraftsman #ad
ManufacturerCRAFTSMAN #ad
Part NumberCMMT99144
ModelCMMT99144

4. Sunex Tools

#ad

Sunex 321md 3/8-Inch Drive 21-Mm Deep Impact Socket

#ad
Sunex Tools #ad - Radius corner design - to extend the life of fasteners. 21mm deep impact socket. Forged from the finest chrome molybdenum alloy steel-the best choice for strength and durability. 3/8-inch drive. The design drives the side of the fastener instead of the corner.
BrandSunex Tools #ad
ManufacturerSunex International #ad
Height2.5 Inches
Length0.9 Inches
Weight0.38 Pounds
Width0.9 Inches
Part Number321MD
Model321MD

5. Sunex Tools

#ad

Sunex 221md 1/2-Inch Drive 21-mm Deep Impact Socket

#ad
Sunex Tools #ad - Radius corner design-to extend the life of fasteners. The design drives the side of the fastener instead of the corner. Forged from the finest chrome molybdenum alloy steel-the best choice for strength and durability. Provides increased strength, but also avoids rounding of rusted or damaged fasteners. 1/2-inch drive, 21mm deep impact socket.
BrandSunex Tools #ad
ManufacturerSunex International #ad
Height3 Inches
Length1 Inches
Weight0.25 Pounds
Width1 Inches
Part Number221MD
Model221MD

6. Crescent

#ad

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

#ad
Crescent #ad - Mirror polish finish that’s easy to Wipe clean. Made of chrome vanadium steel alloy specially formulated and heat-treated for strength and corrosion-resistance. Nickel chrome plated for long lasting protection. Sockets feature off corner loading technology to virtually eliminate fastener rounding. Tools meet stringent new ANSI and ASME specifications and come with a full Satisfaction guarantee.
BrandCrescent #ad
ManufacturerCrescent Tools #ad
Height5.65 Inches
Length1.6 Inches
Weight0.44 Pounds
Width1.15 Inches
Part NumberCDDS80N
ModelCDDS80N

7. Titan Tools

#ad

Titan 21093 1/2-Inch Drive x 21mm Non-marring Impact Deep Lug Nut Socket

#ad
Titan Tools #ad - Non-marring deep 21mm lug nut socket. Limited lifetime. Non-marring core and sleeve protects custom wheels and lug nuts from scratches and abrasion. Attractive Red finish for easy identification. 1/2" drive socket.
BrandTitan Tools #ad
ManufacturerTitan Tools #ad
Height5.2 Inches
Length1.4 Inches
Weight0.5 Pounds
Width1.4 Inches
Part Number21093
Model21093
WarrantyMANUFACTURER WARRANTY

8. Craftsman

#ad

CRAFTSMAN Deep Socket, 12-Point CMMT44447, Metric, 1/2-Inch Drive, 21mm

#ad
Craftsman #ad - Quick size identification: Deep socket comes with large markings. Quick engagement: 12-point box end metric socket comes with fastener. Full lifetime warranty, refer to "Warranty & Support" section below for full details. Meets or exceeds ASME Specifications. Corrosion resistance: Deep socket comes with full polish chrome finish.
BrandCraftsman #ad
ManufacturerCRAFTSMAN #ad
Part NumberCMMT44447
ModelCMMT44447

9. TEKTON

#ad

TEKTON 1/2 Inch Drive x 21 mm Deep 6-Point Impact Socket | SID23121

#ad
TEKTON #ad - Socket end diameter: 1. 19 inches. Drive end diameter: 1. 19 inches. Radiused corners prevent fastener round-off by applying force to a fastener's flat sides, rather than its corners. Overall socket Length: 3. 08 inches. Meets a minimum of 1. 3 times the ansi/ASME standard for proof torque. Size is marked both with a high-visibility laser marking and a permanent stamped marking that won't wear off. Socket well depth: 1. 41 inches. 6-point socket opening provides an exact fit for hex fasteners.
BrandTEKTON #ad
ManufacturerTEKTON #ad
Height1.2 Inches
Length3.1 Inches
Width1.2 Inches
Part NumberSID23121
ModelSID23121
WarrantyNo time limits, no receipts: tekton.com/tool-help

10. Jetech

#ad

Metric, Heat-Treated Chrome Molybdenum Alloy Steel, Jetech 3/8-Inch Drive 21mm Deep Impact Socket with 6-Point Design

#ad
Jetech #ad - Cold forging & heat treatment - Cold forging and heat treatment greatly improve the performance of the socket with enhanced hardness, increased wear-resistance and lifespan.

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. Cr-mo alloy steel - cr-mo deep impact socket features with added strength, higher working temperatures and corrosion resistance. Extra depth - provide more space to accommodate longer bolts and wider applications to facilitate your work.
BrandJetech #ad
ManufacturerJetech #ad
Part NumberFK3ov8-D21