3/8 Inch Deep Impact Socket 21mm - Grey Pneumatic

The Grey Pneumatic 1021MD 3/8" Deep Impact Socket, 21mm, is a professional-grade tool engineered for the rigorous demands of automotive and industrial service. This deep, 6-point impact socket delivers essential reach and robust engagement for high-torque applications, ensuring reliable performance on modern vehicles and machinery. Crafted from impact-grade chrome-molybdenum steel, it is built to withstand the daily stresses of professional shops and fleet garages.

Key Features

• Extended Reach 21mm Deep Socket: A frequently utilized metric size, offering extended reach for common fasteners found in automotive suspension, subframe, brake, and engine assemblies on a variety of import and domestic vehicles.
• Impact-Grade Chrome-Molybdenum Steel: Constructed from durable chrome-molybdenum steel, designed to resist cracking and deforming under the repeated high-torque forces generated by pneumatic and cordless impact wrenches.
• Deep Well Profile: Provides extended length to clear studs and access fasteners in recessed pockets and confined areas where standard sockets cannot fully seat.
• 6-Point Design: Grips the flats of the fastener to minimize the risk of rounding and enhance torque transfer, particularly on stubborn or corroded hardware.
• Corrosion-Resistant Finish: Features a protective coating that helps guard against rust and abrasion, ensuring longevity in demanding automotive, fleet, and industrial work environments.
• Precision Fit: Manufactured for accurate sizing, ensuring consistent and secure engagement on 21mm metric fasteners to reduce slippage and rework.

Applications

The 1021MD 21mm deep impact socket is a fundamental tool for any professional metric impact set. It is commonly applied to suspension hardware, engine mount and subframe bolts, brake caliper brackets, and various other chassis fasteners on passenger vehicles and light-duty trucks. This socket is suitable for general repair, comprehensive fleet maintenance, and diverse industrial service tasks, performing reliably whether on automotive lifts, in mobile service trucks, or in heavy equipment and machinery applications.

Specifications

• Manufacturer: Grey Pneumatic
• Model: 1021MD
• Drive Size: 3/8 inch
• Socket Size: 21mm
• Style: Deep, Impact, 6-point
• Weight: 0.4 lb
• Dimensions: 4.8 x 2.15 x 1.15 in