# Proto

**Manufacturer:** Proto  
**MPN:** `J7221M`

The Stanley Proto J7221M 3/8-Inch Drive Impact Socket, 21mm, 6 Point features a TorquePlus design that allows for quick and easy socket engagement. This design minimizes fastener rounding and helps extend fastener life. The socket size is stamped on the tool for easy identification. The Proto 6 Point Impact Sockets are ideal for use on stubborn or damaged fasteners and those made from soft materials.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, Stanley Proto |
| DimensionUnit | inch |
| GraingerSku | 5F499 |
| Extra Product Name | Proto |
| UPC | 662679331078 |
| UnitOfMeasure | EA |
| Weight | 0.1, 0.10000000000000002 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 1.2 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1.1 |
| moq | 1 |
| MPN | J7221M |
| multiple | 1 |
| qtyInStock | 54 |
| qtyInStockOverride | -2 |
| SKU | G7628056 |
| tierMinQty1 | 1 |
| tierPrice1 | 7.99 |
| url | https://www.zoro.com/proto-38-dr-21mm-size-metric-impact-socket-6-pts-j7221m/i/G7628056/ |
| width | 1.2 |
| EAN | 662679331078 |
| Part Number | J7221M |
| Model | J7221M |
| Product Group | Home Improvement |
| Drive Size | 3/8 in |
| Socket Type | Impact |
| SAE or Metric | Metric |
| Number of Points | 6 |
| Overall Length | 1 3/32 in |
| Material | Alloy Steel, Blend |
| Size | 21mm, One Size |
| Finish | black oxide |
| Output Type | 6 pt |
| Standards | ASME B107.110-2012 |
| Impact Rated | Yes |
| Socket Depth | Standard |
| Item | Impact Socket |
| Drive Type | Impact |
| Category Type | Impact Socket |
| Measurement Type | Metric |
| Compatible Fastener Type | Bolts, Screws, Studs |
| Non-Magnetic | No |
| Locking | Yes |
| Socket Size | 21 mm |
| Tether Ready | No |
| Socket Shape | 6-Point |
| Non-Sparking | No |
| Socket Length | 1 3/32 in |
| Sink Installation | Undermount |
| Sink Thickness | 16 Gauge |
| Number of Bowls | 1 |
| Weight (lbs) | 15 |
| Bowl Depth (In) | 7 |
| Minimum Cabinet Size | 12 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G7628056 | 7.99 | 1 | 54 | 1 |
| Grainger | 5F499 |  |  | None | 1 |
| ToolUp.com | PROTO J7221M | 8.22 | 1 | None | 1 |
| wylaco.com | J7221M |  |  | None | 1 |
| Applied Industrial | 105855855 |  |  | None | 1 |
| National Supply Network | B942459 |  |  | None | 1 |
| sustainablesupply.com | C2807584 | 10.28 | 1 | None | 1 |
| motionindustries.com | 02647469 | 11.04 | 1 | None | 1 |
| stellarindustrial.com | PROTO 7221M |  |  | None | 1 |
| directools.com | J7221M | 6.35 | 1 | None | 1 |
| Turner Supply | 267933107 |  |  | None | 1 |
| aih.com | PRO7221M |  |  | None | 1 |
| grainger.ca | PRT7221M | 11.40241226 | 1 | None | 1 |
| toolshackweb.com | PRO7221M | 10.68 | 1 | None | 1 |
| National Supply Network | 07542392 | 9.95 | 1 | None | 1 |
| imsbolt.com | J7221M | 13.02 | 1 | None | 1 |
| jensentools.com | 10080302 | 13.02 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/117500000/117863500/part_--J7221M---Proto--ff70c65683.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp