# Proto

**Manufacturer:** Proto  
**MPN:** `J138WP`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Proto |
| Manufacturer name | Proto |
| Manufacturer | Proto, Stanley Proto |
| DimensionUnit | inch |
| Extra Product Name | Proto |
| UnitOfMeasure | EA |
| Weight | 2.9, 1, 2.8880556322, 3.35, 3.3509921802833795 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | TW |
| height | 1 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1 |
| moq | 1 |
| MPN | J138WP |
| multiple | 1 |
| qtyInStock | 10 |
| qtyInStockOverride | -2 |
| SKU | G4556819 |
| tierMinQty1 | 1 |
| tierPrice1 | 319.40 |
| url | https://www.zoro.com/proto-drive-air-impact-wrench-38-in-j138wp/i/G4556819/ |
| width | 1 |
| UPC | 662679107208 |
| EAN | 662679107208 |
| Part Number | J138WP |
| Model | J138WP |
| Product Group | Home Improvement |
| Air Inlet | 1/4 in NPT |
| Blows per Minute | 1750 |
| Free Speed | 10,500 RPM |
| Handle Type | Pistol Grip |
| Housing Material | Composite |
| Max Bolt Capacity | 1 in |
| Max Torque | 525 ft.-lb. |
| Min Hose Size | 3/8 in |
| Square Drive Size | 3/8" |
| Item | Impact Wrench |
| Retainer Type | Friction Ring |
| Handle Material | Composite |
| Features | Titanium exhaust deflector and muffler. |
| Overall Length | 6 in |
| Tool Weight | 2.9 lb |
| Fastening Torque | 525 ft-lb |
| Tool Style | Full-Size |
| Clutch Style | Twin Hammer |
| Impact Sound Level | 94 dB |
| Impacts per Minute | 1,750 |
| Power to Weight Ratio | 181 ft-lb/lb |
| Min Air Pressure | 90 psi |
| Number of Speed Settings | 3 |
| Drive Type | Standard |
| Impact Rated | Yes |
| Built-In Light | No |
| Air Pressure | 90 psi |
| Max Air Pressure | 90 psi |
| Vibration Level | 3.0 m/sq sec |
| Air Consumption | 5 cfm |
| Duty Rating | Industrial Duty |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G4556819 | 319.4 | 1 | 10 | 1 |
| ToolUp.com | PROTO J138WP | 273.53 | 1 | None | 1 |
| Resourceful Supply | J138WP | 264.95 | 1 | 5 | 1 |
| motionindustries.com | 05669251 | 392.74 | 1 | None | 1 |
| AmazonTP | B00F945D1S | 302.81 | 1 | None | 1 |
| AmazonUNK | B00F945D1S | 302.81 | 1 | None | 1 |
| Applied Industrial | 110284953 |  |  | None | 1 |
| grainger.ca | PRTJ138WP | 571.10770916 | 1 | None | 1 |
| Fisher tools | J138WP | 292.95 | 1 | None | 1 |
| National Supply Network | 602305-GI | 374.24 | 1 | None | 1 |
| diamondtool.net | 43-1845 | 295.03 | 1 | 2 | 1 |
| Zoro | G402593398 | 714.07 | 1 | None | 1 |
| stellarindustrial.com | PROTO J138WP |  |  | None | 1 |
| Turner Supply | 267910720 |  |  | None | 1 |
| turtle.com | SOO J138WP | 317.07 | 1 | None | 1 |
| primebuy.com | J138WP | 328.0 | 1 | None | 1 |
| DGI Supply | PTOJ138WP | 344.04 | 1 | None | 1 |
| Grainger | 34TH32 |  |  | None | 1 |
| Circle C Supply | PTOA004 | 259.5 | 1 | None | 1 |
| toolsplus.com | PROJ138WP | 239.0 | 1 | None | 1 |
| imsbolt.com | J138WP | 616.43 | 1 | None | 1 |
| grovesindustrial.com | PRO 138WP | 364.06 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/264000000/264396000/part_--J138WP---Proto--8f16daabd3.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp