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The Stanley Proto J7121 is a 1/2-inch square extension with a 7/16-inch hex drive, forged from durable alloy steel. Featuring a stamped size for quick identification and a ball detent for secure bit retention, this USA-made tool is engineered for precision in non-impact applications, making it a reliable choice for professionals seeking lasting performance.
| ASIN | B001HWC6A2 |
| Best Sellers Rank | #164,055 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #216 in Hex-Shank Drill Bits |
| Bit Compatibilities | 1/2", 7/16" |
| Brand Name | Proto |
| Customer Reviews | 4.5 4.5 out of 5 stars (881) |
| Drive Bit Shank Style | Hex with Square Drive |
| Drive System | Square |
| Finish Types | Brushed |
| Global Trade Identification Number | 00662679340155 |
| Included Components | 1/2" Square Extension 7/16" Hex |
| Item Length | 6.25 inches |
| Item Type Name | 1/2" Square Extension 7/16" Hex |
| Item Weight | 2.4 ounces |
| Manufacturer | Stanley Proto |
| Manufacturer Part Number | J7121 |
| Manufacturer Warranty Description | Manufacturer |
| Material Type | Blend |
| Model Number | J7121 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| UPC | 662679340155 |
| Unit Count | 1 Count |
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