# Proto

**Manufacturer:** Proto  
**MPN:** `J5441R8MM`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto |
| DimensionUnit | inch |
| GraingerSku | 56JT15 |
| Extra Product Name | Proto |
| UPC | 662679186104 |
| UnitOfMeasure | EA |
| Weight | 3.35 |
| WeightUnit | lbs |
| atoms | 8 |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | TW |
| height | 1.4 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 9.5 |
| moq | 1 |
| MPN | J5441R8MM |
| multiple | 1 |
| qtyInStock | 60 |
| qtyInStockOverride | -2 |
| SKU | G4388249 |
| tierMinQty1 | 1 |
| tierPrice1 | 173 |
| url | https://www.zoro.com/proto-12-in-drive-socket-bit-set-metric-8-pcs-j5441r8mm/i/G4388249/ |
| width | 3.6 |
| Drive Size | 1/2 in |
| Measurement Type | Metric |
| Finish | Chrome |
| SAE or Metric | Metric |
| Number of Pieces | 8 |
| Includes | Not Found |
| Item | Socket Bit Set |
| Features | Rounded Bolt Removal Technology (Rbrt) Designed to Prevent the Rounding of Hex Fasteners |
| Drive Type | Not Found |
| Material | Alloy Steel |
| Insulated | No |
| Tip Style | Hex |
| Sockets Included | 11.00mm, 12.00mm, 13.00mm, 14.00mm, 15.00mm, 17.00mm, 18.00mm, 19.00mm |
| Insert Length | 1 47/66 in |
| Tether Capable | Not Tether Capable |
| Tip Type | Hex |
| Overall Length | 2 3/4 in |
| Standards | ANSI |
| Tip Size | 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 7/64 in, 9/64 in |
| Impact Rated | No |
| Tether Style | Not Tether Capable |
| Replaceable Insert | No |
| Container Type | None |
| Tether Ready | No |
| Piece Count Range | 2 to 25 |
| Non-Sparking | No |
| Shop By | Hot Buys |
| Country of Origin (subject to change) | Taiwan, Province of China |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4388249 | 173.0 | 1 | 60 | 1 |
| simsupply.com | CU-35364A543135 | 217.5 | 1 | 16 | 1 |
| grainger.ca | PRT5441R8MM | 249.53936086 | 1 | None | 1 |
| Grainger | 56JT15 |  |  | None | 1 |
| National Supply Network | 94433646 | 175.77 | 1 | None | 1 |
| autotoolworld.com | POJ5441R8MM | 192.33 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/233000000/233435500/part_--J5441R8MM---Proto--08ab2cbd86.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp