Astro Tools 78318 Extra-Long Flex Head Nano Ratchet
- 18 inches long, extra-long flex head
- 1/2 inch nano sockets are the matching family
- 12-point ratcheting box end
- Dual inch and metric measurement standard
- 0.61 kilograms, polished metal
- Single wrench, no sockets in the listing
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A long-handled flex-head ratchet for turning nano sockets where leverage and reach matter. It is a manual tool, so power-driven jobs call for something else.
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ASIN: B01JBJZAL4Model: 78318Category: Wrenches
Overview
Astro makes this extra-long ratchet wrench with a flexing head and a ratcheting box end that accepts its nano sockets. The extended handle gives leverage, and the head swivels to angle the socket at a fastener.
Leverage is the reason to own it: the length lets one hand break loose snug hardware that a short ratchet cannot. The limit is that it is built for one family of sockets, and none is included.
Who it's for
Mechanics who already own the matching socket family get extra reach and a head that angles around brackets. Weekend users with a standard socket set will find the sockets are not interchangeable and none ship with it.
Pros and cons
- Long handle for extra leverage
- Flex head angles around obstructions
- Works in both inch and metric hardware
- Ratcheting action saves repositioning
- Needs the matching socket family
- No sockets included
- Handle may be unwieldy in small bays
- Not listed as non-sparking
Performance notes
Handle length multiplies the force a user can apply, so the wrench loosens tight hardware that a short ratchet could strip. The flex joint lets the head tilt to the fastener, though pulling at a steep angle puts more strain on the joint. The ratchet mechanism clicks in one direction and grips in the other, so repositioning is rarely needed.
Specifications
| Brand | Astro Pneumatic Tool Company |
|---|---|
| Model | 78318 |
| Dimensions & fit | |
| Item Length | 18 Incheshigher than 91% of 338 wrenches |
| Wrench Length Style | Flex-Head |
| Item weight | 0.61 Kilograms |
| Construction & materials | |
| Material Type | Metal |
| Finish Types | Polished |
| Color | Grey |
| Included components | |
| Included Components | Extra-long flex head ratchet wrench for 1/2 inch nano sockets |
| Unit Count | 1.0 Count |
| Warranty & support | |
| Manufacturer Warranty Description | Manufacturer’s Warranty |
| Other details | |
| Measurement Standard | Both (Dual) |
| Head Style | Flex |
| End Style | Ratcheting Box |
| Operation Mode | Manual |
| Is Racheting | Yes |
| Point Count | 12 |
Closest rivals on specs
Frequently asked questions
Does the Astro 78318 flex head lock at an angle?
The head style is listed as flex, and the listing does not describe a lock or detent, so confirm with the maker if you need a fixed angle.
Do sockets come with the Astro 78318?
No. The listing names only the extra-long flex head ratchet wrench for 1/2 inch nano sockets.
Is the Astro 78318 an impact tool?
It is listed as a manual ratcheting wrench and gives no impact rating, so use it by hand.