Magnetic Spark Plug Socket 3/8"D 21mm

An extra long, thin walled 21mm spark plug socket with magnetic end for reliable spark plug removal and installation. The 250mm tool length is designed to reach deep plugs without the need for an extension bar and the slim diameter is ideal for accessing modern engines with limited plug clearance. This professional quality tool has a standard 3/8" square drive and a knurled end for finger grip tightening.

• Thin wall spark plug socket for use on modern engines with limited plug clearance. Extra long to access deep seated spark plugs.
• Size: 21mm Bi-Hex (12pt) x 3/8"D x 250mm long.
• Outside diameter: 27mm; inside depth: 71.8mm
• Magnetic end holds the spark plug safely & securely, with the knurled end for finger grip tightening.
• Manufactured from chrome vanadium. Other sizes available, please see Laser Part Nos. 3681 (14mm)& 3682 (16mm).