Description
The Proto J5538M is a 3/4 in drive, 38 mm metric socket with a 12-point opening, in a satin finish and standard length. The manufacturer positions its 12-point sockets for stubborn or damaged fasteners and for fasteners made of soft materials.
Per the manufacturer, the TorquePlus design lets the socket engage the fastener flats rather than the corners, using a radius-corner design that spreads contact stress over a large area of the socket. The page also lists a ball detent design. Overall length is 2-13/32 in. Sold as a single socket.
Features
- 3/4 in drive, 38 mm metric socket
- 12-point opening
- Suited to stubborn or damaged fasteners and soft-material fasteners, per the manufacturer
- TorquePlus design engages the fastener flats, not the corners, per the manufacturer
- Radius-corner design spreads contact stress
- Ball detent design
- Satin finish
- Overall length 2-13/32 in
Specifications
| Specification | Value |
|---|---|
| Model | J5538M |
| Quantity | 1 piece |
| Type | socket, 12-point, standard length |
| Drive size | 3/4 in |
| Socket size | 38 mm |
| Unit of measure | metric |
| Overall length | 2-13/32 in |
| Bolt clearance depth | 1-5/16 in |
| Nut depth | 1-15/64 in |
| Drive end outside diameter | 1-19/32 in |
| Nut end outside diameter | 2-3/64 in |
| Finish | satin |
| Weight | 0.472 kg (1.04 lbs) |
Part numbers
| Manufacturer part number (MPN) | Big Papa SKU |
|---|---|
| J5538M | BP-G-PRO-5538M |
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