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🔧 Extend your reach, speed, and precision — drill like a pro with Bosch!
The Bosch 2608587521 1/4-Inch Quick Change Hex Shank Extension is a precision-engineered accessory designed to enhance the performance of Self Cut Speed spade bits. Featuring a patented self-feeding threaded tip and cobalt steel construction, it delivers 3x faster drilling in wood and plasterboard. Its ISO-standard hex shank ensures compatibility and a secure, wobble-free fit, making it an essential tool for professionals tackling hard-to-reach or deep drilling tasks.
| ASIN | B008HRHTCK |
| Best Sellers Rank | 50,882 in DIY & Tools ( See Top 100 in DIY & Tools ) 22 in Hex-shank Drill Bits |
| Brand | Bosch |
| Country Of Origin | Taiwan |
| Customer Reviews | 4.6 4.6 out of 5 stars (291) |
| Cutting Diameter | 6.35 Millimetres |
| 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 |
| Material | Cobalt Steel |
| Model Number | 3165140638838 |
| Number of Flutes | 1 |
| Shank Type | HEX |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| Unit Count | 1.0 count |
B**Y
Great for hard to reach jobs
⭐️⭐️⭐️⭐️⭐️ Handy little extension – strong and super easy to use! Picked this up to use with my Bosch spade bits, and it’s been brilliant. The quick-change mechanism is smooth and holds the bits tight—no wobble, no slipping. It’s especially useful when you’re drilling in awkward spots or through deeper timber where the standard bit just won’t reach. Feels solid and well-made, like you'd expect from Bosch. Great little add-on for the toolbox. If you're using self cut spade bits, this makes the job way easier and more flexible.
R**T
Brilliant extension piece
Brilliant extension vital bit of my Bosch armoury!
C**A
Perfect
Strong sturdy perfect extension an holds bits well
D**L
Quality
Quality item, quick release, much better than the old grub screw version i used.
M**.
Very handy to have.
Long length and Quick release. Its the perfect extension rod for drilling through triple joists ect.
D**L
Bosch extender
Well made with quality materials. Great for extending Bosch spade bits and screwdriver bits.
A**M
Excellent quality
A very good quality extension, holds the bits securely.
J**K
Solid build quality.
Not cheap but very well made.
D**9
This is a great high quality piece of equipment.
S**G
Nice
J**E
bien fonctionnel et verrouille bien l'embout
S**T
Manchmal kommt man nicht an die Schraube. Diese Verlängerung hilft. Macht einen hochwertigen Endruck. Bislang konnte es allen Bemühungen trotzen. Ich habe es im DIY-Bereich nicht verbogen bekommen.
R**L
Artikel ist ok, leider hat der Paketdienst so unmöglich in den Briefkasten gesteckt das ich ihn erst nach 3 Tagen entdeckt habe.
Trustpilot
3 days ago
1 month ago