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Proto 5221M-TT Tether-Ready Drive Deep Sockets, 3/8 in Drive, 21 mm, 1 9/32 in L, 12 Points
Item #: 5221M-TT by Stanley-Proto Industrial Tools
UPC #: 662679116149
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Features
Finish
Full Polish
Type
Drive Socket
Locking Type
Pin
Measuring System
Metric
Nominal Width
1 3/32 in
Nominal Opening Size
21 mm
Nom. Width
1 3/32 in
Drive Size [Nom]
3/8 in
Overall Length [Nom]
1 9/32 in
No. of Points
12
Socket Length
1 9/32 in
Product Overview
Manufactured with four detent holes so that the pin detent will engage correctly regardless of the direction the socket is placed on the square drive
The Positive Control system requires a separate tool to attach or remove the socket, meaning it cannot be removed without specific intent
Finish is applied after the holes are bored for better corrosion resistance
Ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials
The TorquePlusTM design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners
The TorquePlusTM configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the socket, minimizing slippage and fastener rounding, helping to extend fastener life, and allowing the user to more easily turn worn, rounded, or rusted fasteners.
The Positive Control system requires a separate tool to attach or remove the socket, meaning it cannot be removed without specific intent
Finish is applied after the holes are bored for better corrosion resistance
Ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials
The TorquePlusTM design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners
The TorquePlusTM configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the socket, minimizing slippage and fastener rounding, helping to extend fastener life, and allowing the user to more easily turn worn, rounded, or rusted fasteners.