# Proto

**Manufacturer:** Proto  
**MPN:** `J4988CF`

The Proto J4988CF is a 3/8" drive crowfoot wrench with an open end, suitable for a range of applications. It has a 2-3/4" length and is designed for use with 3/8" drive tools.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, PROTO |
| DimensionUnit | inch |
| GraingerSku | 449R27 |
| Extra Product Name | Proto |
| UPC | 662679978587, 94703748543 |
| UnitOfMeasure | EA |
| Weight | 1.2, 0.15, 1.05 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 0.7 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 5 |
| moq | 1 |
| MPN | J4988CF |
| multiple | 1 |
| qtyInStock | 32 |
| qtyInStockOverride | -2 |
| SKU | G5929310 |
| tierMinQty1 | 1 |
| tierPrice1 | 73.33 |
| url | https://www.zoro.com/proto-38-drive-2-34-in-sae-crowfoot-socket-wrench-j4988cf/i/G5929310/ |
| width | 5 |
| EAN | 94703748543 |
| Part Number | J4988CF |
| Model | J4988CF |
| Product Group | Home Improvement |
| Item | Crowfoot Socket Wrench |
| Head Style | Open End |
| SAE or Metric | SAE |
| Drive Size | 3/8" |
| Socket Sizes | 2-3/4" |
| Overall Length | 4-11/16" |
| Number of Pieces | 1 |
| Head Size | 2 3/4 in |
| Finish | Full Polish |
| Standards | ASME B107.100-2010, SAE AS4984A |
| Material | Alloy Steel, Blend |
| Color | Silver, White |
| Measurement Type | SAE |
| Corrosion Resistant | Yes |
| Standard | ASME B107.100-2010; SAE AS4984A |
| Country of Origin (subject to change) | United States |
| ASIN | B002FCVUMI |
| AdultProduct | False |
| Amount | 122.72, 148.47 |
| Asin | B002FCVUMI, B006ERP57G |
| Autographed | False |
| Batteries_included | False |
| Batteries_required | False |
| Binding | Tools & Home Improvement |
| Brand | Proto, Stanley-Proto |
| Bullet_point | 3/8" Drive Crowfoot Wrench 2-3/4" Open End, SAE or Metric: SAE; Drive Size: 3/8"; Head Style: Open End |
| Case | 1 |
| Cat | Tools & Home Improvement |
| CatId | 228013 |
| CatTree | 228013, 328182011, 468240, 551238, 553406 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G5929310 | 73.33 | 1 | 32 | 1 |
| Grainger | 449R27 | 109.46 | 1 | None | 1 |
| ToolUp.com | PROTO J4988CF | 86.0 | 1 | None | 1 |
| Resourceful Supply | J4988CF | 53.59 | 1 | None | 1 |
| AmazonSC | B002FCVUMI | 86.45 | 1 | None | 1 |
| Applied Industrial | 105845807 |  |  | None | 1 |
| National Supply Network | B332359 |  |  | None | 1 |
| kscdirect.com | BLA J4988CF |  |  | None | 1 |
| motionindustries.com | 05049482 | 132.11 | 1 | None | 1 |
| stellarindustrial.com | PROTO 4988CF |  |  | None | 1 |
| directools.com | J4988CF | 81.07 | 1 | None | 1 |
| Zoro | G2579421 | 70.06 | 1 | None | 1 |
| Turner Supply | 267997858 |  |  | None | 1 |
| grainger.ca | PRT4988CF | 161.66602844 | 1 | None | 1 |
| jensentools.com | 484-148 | 166.29 | 1 | None | 1 |
| toolshackweb.com | PRO4988CF | 96.76 | 1 | None | 1 |
| National Supply Network | 04567640 | 109.44 | 1 | None | 1 |
| imsbolt.com | J4988CF | 166.29 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/267500000/267662000/part_--J4988CF---Proto--dccf6bb9ce.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp