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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 Screw Size (Head Dia.) | Material | Each | |
1/4" Square Drive | |||||||
---|---|---|---|---|---|---|---|
No. 6 | 1" | 31/64" | Screws | No. 6, No. 8 Standard (0.208") No. 8, No. 10 Countersunk (0.372") | Black-Oxide Steel | 0000000 | 000000 |
Slotted Bit Sockets


Drive Size | Overall Lg. | Material | Finish | Bit Replaceable | Each | |
3/8" Square Drive | ||||||
---|---|---|---|---|---|---|
No. 6 | 1 11/16" | Steel | Chrome Plated | No | 000000000 | 000000 |
Tri-Groove Socket Sets


Grip the indentations around the outside of tri-groove fasteners.
No. of Pieces | Components Included | Includes | Finish | Each | |
1/4" Square Drive—Steel | |||||
---|---|---|---|---|---|
4 | 3 Sockets 1 Drive Tool | Standard Socket: No. 4 (For No. 4 Standard Screws and No. 6 Countersunk Screws) Standard Socket: No. 6 (For Nos. 6 and 8 Standard Screws and Nos. 8 and 10 Countersunk Screws) Standard Socket: No. 10 (For Nos. 10, 12, and 1/4" Standard Screws; 1/4" Countersunk Screws; and Nos. 6 and 8 Nuts) 8" Long Socket Screwdiver Handle | Black Oxide | 0000000 | 000000 |