# Proto

**Manufacturer:** Proto  
**MPN:** `J77279P`

The Proto J77279P Expert 3/8-Inch Drive Universal Impact Socket features a ball and spring design allowing for a 30° working angle and smooth 360° rotation. It is designed for use on stubborn or damaged fasteners and those made from soft materials. The TorquePlus configuration enables quick and easy socket engagement to the fastener flats, shifting contact area and stress away from the fastener corners.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, Stanley Proto |
| DimensionUnit | inch |
| GraingerSku | 4UHU5 |
| Extra Product Name | Proto |
| UPC | 662679007058 |
| UnitOfMeasure | EA |
| Weight | 0.3, 0.15, 0.30 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 1.1 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 3 |
| moq | 1 |
| MPN | J77279P |
| multiple | 1 |
| qtyInStock | 94 |
| qtyInStockOverride | -2 |
| SKU | G0917077 |
| tierMinQty1 | 1 |
| tierPrice1 | 30.72 |
| url | https://www.zoro.com/proto-flex-impact-socket-38-in-dr-34-in-6-pt-j77279p/i/G0917077/ |
| width | 1.5 |
| EAN | 662679007058 |
| Part Number | J77279P |
| Model | J77279P |
| Product Group | Home Improvement |
| Drive Size | 3/8 in |
| SAE or Metric | SAE |
| Number of Points | 6 |
| Overall Length | 2 15/32 in |
| Material | Alloy Steel, Blend |
| Size | 3/4 in, One Size |
| Finish | black oxide |
| Output Type | 6 pt |
| Item | Flex Impact Socket |
| Drive Type | Impact |
| Socket Depth | Standard |
| Standards | ASME B107.110-2012 |
| Impact Rated | Yes |
| Category Type | Impact Socket |
| Measurement Type | SAE |
| Tether Ready | No |
| Compatible Fastener Type | Bolts, Screws, Studs |
| Non-Magnetic | No |
| Non-Sparking | No |
| Socket Shape | 6-Point |
| Locking | Yes |
| Socket Size | 3/4 in |
| Socket Length | 2 15/32 in |
| Country of Origin (subject to change) | United States |
| ASIN | B00BNSHSEY |
| AdultProduct | False |
| Amount | 44.22, 49.76 |
| Asin | B00BNSHSEY |
| Autographed | False |
| Batteries_included | False |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0917077 | 30.72 | 1 | 94 | 1 |
| Grainger | 4UHU5 |  |  | None | 1 |
| ToolUp.com | PROTO J77279P | 28.8 | 1 | None | 1 |
| Raptor Supplies | AD9REQ | 56.582604 | 1 | None | 1 |
| motionindustries.com | 05049006 | 44.26 | 1 | None | 1 |
| Amazon | B00BNSHSEY | 16.28 | 1 | None | 1 |
| bscsource.com | J77279P | 42.29 | 1 | None | 1 |
| National Supply Network | B943331 |  |  | None | 1 |
| sustainablesupply.com | C2920437 | 34.3 | 1 | None | 1 |
| Guardian | 66529827 | 43.39 | 1 | None | 1 |
| ferguson.com | 4627056 | 32.85 | 1 | None | 1 |
| Applied Industrial | 105856761 |  |  | None | 1 |
| stellarindustrial.com | PROTO 77279P |  |  | None | 1 |
| directools.com | J77279P | 26.24 | 1 | 1 | 1 |
| Turner Supply | 267900705 |  |  | None | 1 |
| grainger.ca | PRT77279P | 51.25641972 | 1 | None | 1 |
| National Supply Network | 66529827 | 40.14 | 1 | None | 1 |
| jensentools.com | 10080288 | 52.25 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/34000000/34032000/part_--J77279P---Proto--8b5aefa3b2.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp