Proto Tethered 1/2 in. Drive 21mm 12-Point Socket (J5421M-TT)

J5421M-TT — Proto Tethered 1/2 in. Drive 21mm 12-Point Socket, size 21mm (0.827 in.).

Compare sizes: Proto Tethered 1/2 in. Drive 12-Point Socket

21mm on 1/2 in. drive: other styles

• 1/2 in. Drive 21mm 12-Point Deep Socket (J5321M)
• 1/2 in. Drive 21mm 12-Point Impact Socket (J7421MT)
• 1/2 in. Drive 21mm 12-Point Socket (J5421M)
• 1/2 in. Drive 21mm 6-Point Deep Impact Socket (J7321M)
• 1/2 in. Drive 21mm 6-Point Deep Thin Wall Impact Socket (J7321MHT)
• 1/2 in. Drive 21mm 6-Point Impact Socket (J7421M)
• 1/2 in. Drive 21mm 6-Point Socket (J5421MH)
• 1/2 in. Drive 21mm 6-Point Universal Impact Socket J74421MP (J74421MP)

From Proto:

Features

• Proto® 12 Point Sockets are ideal for use on stubborn or damaged fasteners, and also on fasteners made from soft materials
• The TorquePlus™ design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners
• The TorquePlus™ 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

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