Astro Universal and Nano Impact Sockets for Tight Angles
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If you searched for an Astro magnetic wobble socket set, here is the straight answer first: none of the five Astro Pneumatic sets we compared are sold as magnetic, and none use a classic wobble-end drive. What Astro offers in this corner of its catalog are two families built for the same problem, reaching bolts that sit at an awkward angle or in a space too shallow for a normal socket. The Nano Pinless Universal sockets have a ball-style swivel head that angles through a full circle, and the Nano Impact sockets are very short straight sockets that slip into spaces where depth, not angle, is the obstacle.
This article covers five sets: the 78344 and 78244 pinless universal sets in 3/8″ and 1/2″ drive, plus the 78310 SAE, 78314 metric and 78215 metric low-profile Nano sets. The main differences are drive size, metric versus SAE, and whether you need a swivel or simply less length. We compared the listings, specifications and intended use of each so you can pick the one that matches the jobs in your garage.
JOB SHEET
Which Astro Pneumatic Impact Socket Set Should You Buy
- Angled metric bolts with a 3/8″ impact wrench or ratchet: Astro Pneumatic Tool 78344 Metric 3/8″ Nano Pinless Universal set.
- SAE fasteners in shallow spaces on older domestic vehicles: Astro Tools 78310 10-Piece 3/8″ Nano Impact Sockets.
- Metric fasteners where there is no room for a standard shallow socket: Astro Tools 78314 14-Piece 3/8″ Nano Impact Sockets.
- Larger metric suspension and subframe bolts on a 1/2″ gun: Astro Tool 78215 15-Piece 1/2″ Nano Impact Sockets.
- Heavy angled metric bolts that need both torque and a swivel: Astro Pneumatic Tool 78244 11-Piece 1/2″ Nano Pinless Universal set.
No. 01
of 5
AP
Astro Pneumatic Tool 78344 Metric 3/8″ Nano Pinless Universal Impact Sockets
8.2
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Heavy angled metric bolts on 1/2 drive
Pros
- Pinless swivel hex design
- Anti-floppy head holds its angle
- Aluminum socket holder included
- 12mm to 24mm range
Cons
- Stiff until worn in
- Skips 20mm and 23mm
Best for
Angled metric bolts on 3/8 drive guns
Pros
- Pinless 360 degree universal head
- Up to 11% shorter than low-profile universals
- 10mm to 19mm in one set
- Lifetime warranty listed
Cons
- Metric only
- No socket holder mentioned
The Astro Pneumatic Tool 78344 Metric 3/8″ Drive Nano Pinless Universal Impact Sockets is the closest thing in this group to what many people mean by a wobble set. Each socket has a universal head built into it, and because the design is pinless, the listing says the head has a full 360 degrees of freedom to angle and rotate. Instead of a cross pin, Astro uses a hex ball swivel, and the description claims this takes more abuse than winged designs by passing more of the impact force through to the bolt.
The set covers 10mm through 19mm in ten pieces, which lines up with the metric sizes that show up most often on engine accessories, brackets and brake components. Astro describes the Nano form factor as up to 11% shorter than standard low-profile universal impact sockets, which matters when you are trying to fit a gun and a swivel between a frame rail and a fender liner. It suits the home mechanic or pro who works mostly on metric vehicles and keeps hitting bolts that sit a few degrees off-axis. If you also want to see how this compares with the broader lineup, our guide to Astro Pneumatic wobble sockets covers the style in more depth.
Where it gives way: if your bolts are straight on but buried, a straight Nano socket from the 78314 set is shorter and simpler. The listing does not mention a rail or holder for this set.
- Pinless hex ball swivel with 360 degrees of movement
- Up to 11% shorter than standard low-profile universal impact sockets
- Forged cro-mo with a lifetime warranty
- Sizes 10mm to 19mm, ten pieces
No. 02
of 5
AP
Astro Tools 78310 10-Piece 3/8″ Low Profile Nano Impact Sockets – SAE
8.4
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
SAE fasteners in cramped straight-on spots
Pros
- 88 inch socket length
- 17mm outside hex for wrench access
- Forged chrome molybdenum
Cons
- Sizes not listed on the page
- No universal joint
The Astro Tools 78310 10-Piece 3/8″ Drive Low Profile Nano Impact Sockets is the only SAE set in this comparison, so it is the natural pick if you work on older American vehicles, trailers or equipment with inch fasteners. These are straight impact sockets, not universals. Their advantage is length: at 0.88″ (22.5mm), the listing says they are 35% shorter than shallow impact sockets and 15% shorter than other stubby impact sockets.
Every socket in the set shares a 17mm outside hex, which lets you turn the socket itself with a wrench when there is no room for a ratchet or impact tool at all. That is a clever trick for things like exhaust flange nuts tucked above a crossmember. Astro also notes a forged chrome molybdenum build with more material between the socket body and drive than other sets, which is where short sockets tend to be weakest.
One honest gap: the listing does not specify which SAE sizes the ten pieces include, so check the size range on the product page before you buy. It also gives way to the universal sets whenever the bolt is at an angle rather than simply cramped.
- 0.88″ (22.5mm) socket length
- 17mm outside hex on every socket
- Chrome molybdenum steel with a painted finish
No. 03
of 5
AP
Astro Tools 78314 14-Piece 3/8″ Low Profile Nano Impact Sockets – Metric
9.6
/10
Our score
Well rated
Scored 9.2/10 or higher
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Metric work where depth is the problem
Pros
- 14 metric sockets
- 88 inch socket length
- 17mm outside hex for wrench access
Cons
- Exact sizes not listed
- Straight sockets, no swivel
The Astro Tools 78314 14-Piece 3/8″ Drive Low Profile Nano Impact Sockets is the metric counterpart to the 78310, with fourteen sockets instead of ten. The description says they are made from precision broached forged cro-mo and share the same 0.88″ (22.5mm) length, making them 35% shorter than standard shallow impact sockets and 15% shorter than other stubby impact sockets.
Like its SAE sibling, every socket carries a 17mm outside hex, so a single wrench fits all of them when you need to turn a socket by hand in a spot where a driver will not fit. This is the set for mechanics who work mainly on metric cars and find that the gun plus a regular shallow socket is simply too tall for the gap. For more on how short sockets fit into a well-rounded kit, see our look at Astro half size sockets.
The listing does not specify the exact metric sizes in the fourteen pieces. It weighs 1.1 pounds according to the listing. If you need to swing around an angle, pair it with or step up to the 78344 universal set instead.
No. 04
of 5
AP
Astro Tool 78215 15-Piece 1/2″ Low Profile Nano Impact Sockets – Metric
9.8
/10
Our score
Well rated
Scored 9.2/10 or higher
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Half-inch drive suspension and frame work
Pros
- 10mm to 24mm with no skipped sizes
- 10 inch socket length
- 22mm outside hex
Cons
- Bulkier than 3/8 drive sets
- No universal joint
The Astro Tool 78215 15-Piece 1/2″ Drive Low Profile Nano Impact Sockets brings the Nano idea up to half-inch drive. The sockets are 1.10″ (28mm) long, which the listing says is 37% shorter than shallow impact sockets and 15% shorter than other stubby impact sockets. That extra drive size means these are meant for bigger fasteners and stronger impact guns.
The range is a highlight: 10mm to 24mm without skipping any sizes, which is uncommon and handy when you meet an odd 23mm nut. Every socket shares a 22mm (7/8″) outside hex for wrench access. This set suits anyone doing suspension, subframe or axle work on metric vehicles with a 1/2″ impact, where a regular socket and gun stack up too tall to fit between a control arm and the body.
It gives way to the 3/8″ sets for lighter engine-bay work, where a smaller drive keeps the whole tool package compact. It is also a straight socket, so angled bolts still call for a universal.
- 1.10″ (28mm) socket length
- 22mm (7/8″) outside hex on every socket
- 10mm to 24mm with no skipped sizes
- Precision broached forged cro-mo
No. 05
of 5
AP
Astro Pneumatic Tool 78244 11-Piece 1/2″ Nano Pinless Universal Impact Sockets – Metric
9.2
/10
Our score
Well rated
Scored 9.2/10 or higher
Affiliate link. Price and stock live at Amazon and change there, not on this page.
The Astro Pneumatic Tool 78244 11-Piece 1/2″ Drive Nano Pinless Universal Impact Sockets is the heavy-duty version of the 78344. It uses the same pinless hex ball swivel with 360 degrees of freedom, and the listing highlights an anti-floppy design meant to keep the head from feeling loose after heavy use. Astro is upfront that this makes the sockets feel stiffer out of the box until they wear in, which is a fair trade if you want the head to hold its angle while you line up the gun.
The set includes eleven sockets, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm and 24mm, plus one aluminum socket holder. Note that 20mm and 23mm are not included. The listed item weight is 5.8 pounds. This set suits mechanics tackling larger angled fasteners, such as some mount and bracket bolts, where a 3/8″ universal would be undersized.
The listing also carries a note that international products may be sold from abroad and differ in labeling or instructions, so check the seller details. For straight-on bolts in shallow gaps, the 78215 is the more compact choice. Owners building out a complete drivetrain kit may also want our overview of the Astro driveline socket set.
- Pinless swivel hex design with 360 degrees of movement
- Anti-floppy head that holds its angle
- Aluminum socket holder included
- Cro-mo with lifetime warranty
What Sets These Models Apart
| Set | Drive | Type | Pieces and sizes |
|---|---|---|---|
| 78344 | 3/8″ | Pinless universal | 10, metric 10mm to 19mm |
| 78310 | 3/8″ | Straight Nano, 0.88″ long | 10, SAE, sizes not specified |
| 78314 | 3/8″ | Straight Nano, 0.88″ long | 14, metric, sizes not specified |
| 78215 | 1/2″ | Straight Nano, 1.10″ long | 15, metric 10mm to 24mm |
| 78244 | 1/2″ | Pinless universal | 11, metric 12mm to 24mm with gaps |
Figures in this table are copied from the Amazon listings for these models.
NOTES
Buying Tips for Astro Pneumatic Impact Socket Sets
Start by deciding what is actually blocking you. If the bolt is square to your tool but there is no vertical room, a straight Nano socket wins because nothing is shorter or stiffer. If the bolt sits at an angle, or you have to come in around an obstruction, a universal socket is the tool, and the pinless swivel style removes the cross pin that tends to be the failure point on traditional impact universals. Many mechanics end up owning one of each in their most used drive size.
Next, match drive size to your gun and fasteners. The 3/8″ sets suit engine bay and interior work where compact tools matter, while the 1/2″ sets handle bigger suspension fasteners and more powerful impacts. Finally, confirm metric or SAE. Only the 78310 is SAE here, and the 3/8″ straight sets do not list their exact sizes, so verify coverage on the product page before you order. Keep in mind that universal impact sockets lose some efficiency at steep angles, so for stubborn bolts, straighten the tool as much as the space allows.
FAQ
Are any of these Astro sets magnetic wobble sockets?
No. None of the listings describe magnetic retention or a wobble-end drive. The 78344 and 78244 are pinless universal sockets with a swivel head, and the other three are short straight Nano impact sockets.
What is the difference between the 78344 and 78244 universal sockets?
The 78344 is 3/8″ drive with ten metric sockets from 10mm to 19mm. The 78244 is 1/2″ drive with eleven metric sockets from 12mm to 24mm, adds an aluminum holder and uses an anti-floppy head that feels stiff until worn in.
Why do the Nano sockets have a 17mm or 22mm outside hex
A shared outside hex lets you turn any socket in the set with one wrench when there is no room for a ratchet or impact tool. The 3/8″ sets use 17mm and the 1/2″ 78215 uses 22mm (7/8″).
Which Astro set is SAE?
Only the 78310 in this group is SAE. The listing does not specify its individual sizes, so check the product page for the full size list.
Do these sets come with a case or rail?
Only the 78244 listing mentions an included holder, an aluminum socket holder. The other listings do not specify a case or rail.
Can pinless universal sockets be used on an impact wrench?
Yes, both universal sets are sold as impact sockets. Astro says the hex ball swivel transfers more impact force to the bolt than winged designs, though any universal works best when the angle is kept as shallow as possible.
