# Proto J4940CF 4940CF 3/8DR 1-1/4 Crow Foot | JensenTools

**Manufacturer:** Proto  
**MPN:** `J4940CF`

The Stanley Proto J4940CF is an open-ended crowfoot wrench with a 3/8" drive and a 1-1/4" capacity. It features a full polish finish for corrosion resistance and easy cleaning, as well as a Proto Anti-slip design for secure grip. A locking hole helps hold the crowfoot in place during use, and it has a tight tolerance for a snug fit on fasteners. Made in the USA, this wrench is suitable for use with Proto locking extensions to prevent tool loss in awkward locations.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, PROTO, Proto / Stanley Black & Decker, Stanley Proto |
| KnownMan | Proto J4940CF 4940CF 3/8DR 1-1/4 Crow Foot \| JensenTools |
| Extra Product Name | Proto J4940CF 4940CF 3/8DR 1-1/4 Crow Foot \| JensenTools |
| jsonUrlData | d079e207-ec1c-4870-b12d-ac4d00f8adc7 |
| keywords | Proto J4940CF 4940CF 3/8DR 1-1/4 Crow Foot 203-583 |
| moq | 1 |
| MPN | J4940CF |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 203-583 |
| tierMinQty1 | 1 |
| tierPrice1 | 64.22 |
| UPC | 662679978440, 94704367460 |
| EAN | 662679978440, 94704367460 |
| Part Number | J4940CF |
| Model | J4940CF |
| Product Group | Home Improvement |
| ASIN | B002FCH9JQ, B00858ZYH8 |
| AdultProduct | False |
| Amount | 50.54, 61.16 |
| Asin | B002FCH9JQ, B005YSO7TI, B00858ZYH8 |
| Autographed | False |
| Batteries_included | False |
| Batteries_required | False |
| Binding | Misc., Tools & Home Improvement |
| Brand | Proto, Stanley Proto, Stanley-Proto |
| Bullet_point | Features Proto Anti-slip desgin, Full Polish finish provides corrosion resistance and easy to clean surfaces., Item: Crowfoot Socket Wrench; Finish: Full Polish; Socket Sizes: 1-1/4", Locking hole hel |
| Case | 1 |
| Cat | Tools & Home Improvement |
| CatId | 228013 |
| CatTree | 228013, 328182011, 468240, 551238, 553406 |
| CatalogNumberList | ZO G3239293 |
| ClassificationId | 553416, 553424 |
| Color | Multi |
| Currency | USD |
| CurrencyCode | USD |
| Department | Unisex-Adult |
| DisplayName | Open-End Wrenches, Socket Wrenches |
| EANList | 662679978440, 94704367460 |
| Feature | Full Polish finish provides corrosion resistance and easy to clean surfaces., PROTO J4940CF - |
| Finish_type | Polished |
| Height | 0.199999999796000, 0.20, 0.2362204722, 0.51, 1000, 500, 75, 8.7 |
| Identifier | 00662679978440, 0662679978440, 662679978440, 7436829186848 |
| IdentifierType | EAN, GTIN, UPC |
| Included_components | 3/8" Drive Crowfoot Wrench 1-1/4" Open End |
| IsBrandQuery | True |
| IsDeadAsin | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | Crowfoot Socket Wrench, 3/8" Drive Size, Stanley Proto J4940CF Open Ended Crowfoot Wrench 3/8" Drive 1-1/4" |
| Item_display_weight | 0.45 |
| Item_name | Crowfoot Socket Wrench, 3/8" Drive Size, Stanley Proto J4940CF Open Ended Crowfoot Wrench 3/8" Drive 1-1/4" |
| Item_package_quantity | 1 |
| Item_package_weight | 0.095 |
| Item_type_keyword | open-end-wrenches, socket-wrenches |
| Item_type_name | 3/8" Drive Crowfoot Wrench 1-1/4" Open End |
| Item_weight | 0.15 |
| Keyword | 31-8, J4940CF |
| Label | PROTO, Proto / Stanley Black & Decker, Stanley Proto |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| jensentools.com | 203-583 | 64.22 | 1 | None | 1 |
| Zoro | G4846952 | 37.19 | 1 | 204 | 1 |
| Grainger | 1UDT5 |  |  | None | 1 |
| Grainger | 449R03 |  |  | None | 1 |
| ToolUp.com | PROTO J4940CF | 31.14 | 1 | None | 1 |
| AmazonTP | B002FCH9JQ | 31.85 | 1 | None | 1 |
| Amazon | B002FCH9JQ | 33.81 | 1 | None | 1 |
| Applied Industrial | 105860194 |  |  | None | 1 |
| bscsource.com | J4940CF | 53.19 | 1 | None | 1 |
| grainger.ca | PRT4940CF |  |  | None | 1 |
| Guardian | 04567509 |  |  | None | 1 |
| Turner Supply | 267997844 |  |  | None | 1 |
| motionindustries.com | 04375846 | 54.42 | 1 | None | 1 |
| kscdirect.com | BLA J4940CF |  |  | None | 1 |
| stellarindustrial.com | PROTO 4940CF |  |  | None | 1 |
| Zoro | G3239293 | 25.99 | 1 | None | 1 |
| jensentools.com | 421-371 |  |  | None | 1 |
| aih.com | PRO4940CF | 41.99 | 1 | 3 | 1 |
| Circle C Supply | PTO03290 | 33.3 | 1 | None | 1 |
| National Supply Network | 04567509 | 45.97 | 1 | None | 1 |
| imsbolt.com | J4940CF | 64.22 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/209500000/209705500/part_--J4940CF---Proto--87e0637103.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp