Proto 1/2 in. Drive 21mm 6-Point Deep Impact Socket (J7321M)

J7321M — Proto 1/2 in. Drive 21mm 6-Point Deep Impact Socket, size 21mm (0.827 in.). Nut end outside diameter 1-13/64 in. (30.6 mm); Drive end outside diameter 1-13/64 in. (30.6 mm); Nut depth 1-13/32 in. (35.7 mm); Bolt clearance depth 2-19/32 in. (65.9 mm); Overall length 3-1/4 in. (82.5 mm); Product weight 0.66 lb (299 g).

Compare sizes: Proto 1/2 in. Drive 6-Point Deep Impact 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 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)
• Tethered 1/2 in. Drive 21mm 12-Point Socket (J5421M-TT)

From Proto:

Features

• Proto® 6 Point Impact 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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