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Tri-Groove Sockets
Square Drive
Grip the indentations around the outside of tri-groove fasteners. These sockets are for hand-driven use only.
| Drive Size | Overall Lg. | OD | For Fastener Type | For Nut Size (Dia.) | Material | Each | |
3/8" Square Drive | |||||||
|---|---|---|---|---|---|---|---|
| No. 30 | 1 1/4" | 31/32" | Nuts | 3/8", 5/16" (0.864") | Black-Oxide Steel | 0000000 | 000000 |