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⚡ Drill faster, reach farther, lock tighter — Bosch means business.
The Bosch 2608587521 1/4-Inch Quick Change Hex Shank Extension is a premium accessory designed for self cut speed spade bits. Engineered with a patent-pending self-feeding threaded tip and precision-ground cutting edges, it drills through soft and hard wood up to three times faster than standard bits. Made from specially toughened cobalt steel and featuring an ISO 1173 E6.3 hex shank, this extension guarantees durability, secure bit locking, and compatibility with most power tools. Ideal for professionals tackling deep or hard-to-reach drilling tasks, it delivers reliable performance and long-lasting build quality.
| ASIN | B008HRHTCK |
| Best Sellers Rank | 98,225 in DIY & Tools ( See Top 100 in DIY & Tools ) 37 in Hex-shank Drill Bits |
| Brand | Bosch |
| Country Of Origin | Taiwan |
| Customer Reviews | 4.4 4.4 out of 5 stars (307) |
| Finish Types | Silver |
| Global Trade Identification Number | 03165140638838 |
| Item Dimensions | 45 x 40 x 15 centimetres |
| Item Type Name | Quick-change 1/4" hex shank extension for Self Cut Speed spade bits |
| Item Weight | 0.01 Kilograms |
| Manufacturer | Bosch |
| Manufacturer Part Number | 2 608 587 521 |
| Material | Cobalt Steel |
| Model Number | 3165140638838 |
| Number of Flutes | 1 |
| Number of Pieces | 1 |
| Shank Type | HEX |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| Unit Count | 1.0 count |
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