Astro Pneumatic Tool 78344: Metric 3/8-inch Nano Pinless Universal Impact Sockets (10-Piece)

Overview

The Astro 78344 Metric 3/8-inch Drive Nano Pinless Universal Impact Sockets deliver compact versatility for metric bolt work. This 10-piece set covers common sizes from 10mm to 19mm and is designed for use with a 3/8-inch drive impact wrench. Built to perform in tight spaces, it’s a practical addition to a professional or DIY toolkit.

Why this set stands out

These sockets stand out for their Nano form factor, which is up to 11% shorter than standard low-profile universal sockets. The pinless design provides full 360° freedom for the universal head to angle and rotate, helping you navigate around obstructions without the pin getting in the way or compromising access.

• Pinless design allows a full 360° freedom for the universal head to angle and rotate
• Nano form factor reduces length by up to 11% versus typical low-profile universals
• Forged chrome-molybdenum steel offers durability and a lifetime warranty
• Includes metric sizes 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19 mm

Real-life use scenarios

In automotive or equipment maintenance, these sockets excel when space is limited. Slip a socket onto a stubborn bolt near an exhaust manifold, or reach a fastener behind a radiator where clearance is tight. The 3/8-inch drive remains a common choice for many impact setups, and the compact profile helps you access recessed fasteners without moving surrounding components.

• Access tight engine bays and hard-to-reach fasteners with reduced tool length
• Minimize repositioning thanks to 360° head rotation and pinless design
• Expect reliable performance with chrome-molybdenum construction and a lifetime warranty

Durability is a key focus: the sockets are forged from chrome-molybdenum steel and backed by a lifetime warranty, aligning with professional-grade expectations. While outcomes can vary by application, the design aims to support efficient service and consistent torque delivery on metric hardware.