Description
The Proto J4990-4M is a 3/8 in drive hex bit socket with a 4 mm hex bit. The manufacturer states that it is made from a heat-treated alloy for wear resistance, and that the hex opening holds the bit so that the bit holder takes the torque load.
Overall length 2-23/32 in. The specifications table on the manufacturer page lists a single piece. Sold as a single tool.
Features
- 3/8 in drive
- 4 mm hex bit
- Heat-treated alloy for wear resistance, per the manufacturer
- Hex opening holds the bit so the bit holder takes the torque load, per the manufacturer
- Overall length 2-23/32 in
- Sold as a single tool
Specifications
| Specification | Value |
|---|---|
| Model | J4990-4M |
| Quantity | 1 piece |
| Type | hex bit socket |
| Drive size | 3/8 in |
| Hex size | 4 mm |
| Material | heat-treated alloy |
| Overall length | 2-23/32 in |
| Weight | 0.054 kg (0.12 lbs) |
Part numbers
| Manufacturer part number (MPN) | Big Papa SKU |
|---|---|
| J4990-4M | BP-G-PRO-49904M |
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