Astro Tools 78312 3/8" Drive 1/2 Size Nano Socket Set for Undersized, Swollen or Damaged Bolts

• 3/8" square drive and 17mm outside hex for low profile use with common wrenches or retained in Astro 78318 & 783105 Nano Socket Ratchet Wrenches
• Ever grab a 13mm socket and it's too tight, 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
• Forged CRO-MO with simple warranty process, send Astro an image of the broken tool with address and receive replacement

Introducing the Astro Tools 78312 3/8" Drive ½ Size Nano Socket Set. If you’re familiar with our 78311 ½ size socket set – this new addition offers the same features but now added to our Nano Socket Family with outside hex, this set using our popular 17mm Nano Socket hex size for 3/8” drive hand tools & impacts as well as our 17mm Nano Socket Ratchet Wrenches like 78318. If you've ever grabbed a 13mm socket only to find it too tight, but a 14mm is too loose—and you know it's not SAE—you've experienced how vehicle bolts deviate from factory perfection over time. This specialized set includes Cro-Mo impact grade sockets in 0.5mm increments allowing you to use the 0.5mm under sockets for securely fitting rounded or damaged fasteners, and the 0.5mm over sockets for tackling swollen, corroded, or cap-covered nuts. You can tap under-sized sockets into place with a hammer for maximum grip on difficult jobs, guaranteeing a solution for nearly every imperfect metric and often even SAE fasteners too.