Astro Pneumatic
Astro Pneumatic 78303 3pc Locking 3/8" Drive 1/4" Hex Shank Impact Adapter Extension Set 78303_45
- SKU:
- 21219922
- MPN:
- 78303_45
- Availability:
- Usually ships the same or next business day. In stock at our CA, GA warehouses.
- Shipping:
- Calculated at Checkout
- Stock Update:
- 04/18/2026 12:30:56 AM PST
Bulk discount rates
Below are the available bulk discount rates for each individual item when you purchase a certain amount
| Buy 3 | and pay only $26.97 each 26.97 |
| Buy 4 | and pay only $25.67 each 25.67 |
| Buy 5 - 9 | and pay only $24.87 each 24.87 |
| Buy 10 - 13 | and pay only $22.69 each 22.69 |
| Buy 14 or above | and pay only $22.27 each 22.27 |
- Stock Update:
- 04/18/2026 12:30:56 AM PST
Description
This item is brand-new, factory sealed.
Astro Tools 78303 3pc Locking 3/8" Drive 1/4" Hex Shank Impact Adapter Extension Set- Locking square drive ends keep sockets secure and allow you to work faster
- Easy to use retaining collar release, extensions in 3", 4" and 6" lengths
- Designed for professional use and high torque modern impact drivers
- Manufacturer: ?Astro Tools
- Part Number: ?78303
- Item Weight: ?8.3 ounces
- Package Dimensions: ?8.66 x 3.94 x 0.79 inches
- Item model number: ?78303
- Power Source: ?hand_powered
- Item Package Quantity: ?1
- Included Components: ?3pc Locking 3/8" Drive 1/4" Hex Shank Impact Adapter Extension Set
- Batteries Required?: ?No
Introducing the Astro Tools 78103 (1/4" Drive) and 78303 (3/8" Drive) 3-Piece Locking Hex Shank Impact Adapter Extension Sets. 1/4" hex Impact drivers are getting more powerful and smaller by the year, making them a more popular quick repetitive fastener power tool than ever. What can take that utility to the next level is additional reach, moving your tool away from the work piece with impact rated extensions, and the functional addition of locking socket retention. These two new 1/4" & 3/8" square drive sets feature a simple collar sleeve to pull back and release your socket when you want and keep that socket locked onto the extension when you need it to not come off while performing multiple fastener removals and installs quickly. Built to withstand the demands of high-torque modern impact drivers, these impact adapter extension sets each include 3", 4" and 6" extensions with quick change 1/4" hex shanks.
Warranty Information