Astro Pneumatic

Astro Pneumatic 78311 11pc 3/8" Drive 1/2 Size Socket Set - 9.5 - 19.5mm For Undersized, Swollen Or Damaged Hardware

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SKU:
20636346
MPN:
78311
Availability:
Usually ships the same or next business day. In stock at our NC, NJ warehouses.
Shipping:
Calculated at Checkout
Stock Update:
12/05/2025 06:03:11 AM PST
$47.37

Bulk discount rates

Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 2 and pay only $43.56 each 43.56
Buy 3 and pay only $36.12 each 36.12
Buy 4 or above and pay only $34.84 each 34.84
Stock Update:
12/05/2025 06:03:11 AM PST

Description

This item is brand-new, factory sealed.

78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5-19.5mm for Undersized, Swollen or Damaged Hardware
  • Ever grab a 13mm socket and it's too tight to fit, but 14mm feels lose? And it's not SAE?
  • Not every bolt and nut on vehicles remain factory perfect to the millimeter over time and service life
  • Use 0.5mm under sockets for rounded and damaged bolts and nuts, use 0.5mm over for swollen or corroded bolts and cap covered nuts
  • For hand tools and impact wrenches, use a hammer to fit 1/2 size under sockets where needed
  • Also works on SAE fasteners by stepping down the effective hex dimension on worn out hardware
  • Manufacturer: ?Astro Tools
  • Part Number: ?78311
  • Item Weight: ?1.43 pounds
  • Package Dimensions: ?12.72 x 2.1 x 1.22 inches
  • Item model number: ?78311
  • Size: ?One Size
  • Power Source: ?air_powered
  • Item Package Quantity: ?1
  • Number Of Pieces: ?11
  • Compatible Fastener Range: ?0.375 inches
  • Included Components: ?11-PC 3/8" Drive 1/2 Size Socket Set for Undersized, Swollen or Damaged Hardware
  • Batteries Required?: ?No

The Astro Tools 78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5 - 19.5mm is designed for undersized, swollen, or damaged hardware. Have you ever grabbed, for example, a 13mm socket and it's too tight, but a 14mm feels loose? And it's not SAE? While perfect-fitting sockets are ideal, not every bolt and nut on vehicles remains factory perfect to the millimeter over time and service life. However, this set allows the use of 0.5mm under sockets for rounded and damaged bolts and nuts, and the use of 0.5mm over sockets for swollen or corroded bolts and cap-covered nuts. For hand tools and impact wrenches, use a hammer to fit 1/2 size under sockets where needed.

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Astro Pneumatic 78311 11pc 3/8" Drive 1/2 Size Socket Set - 9.5 - 19.5mm For Undersized, Swollen Or Damaged Hardware
$47.37