The ring insert from Stahlwille is a high-quality socket adapter designed for a variety of applications in workshops and DIY projects. Made from HPQ® high-performance steel, this insert offers high strength and durability. The special forging technology ensures optimal fiber alignment, enhancing the stability and lifespan of the product. The internal square is manufactured according to DIN 3120, ensuring a secure fit on the drive tool, which prevents slipping over screw corners. The closely tolerated wrench sizes and the stress-free hardening in an oil bath provide precise accuracy. With a length of 38 mm and a wrench size of 16 mm, this insert is versatile and suitable for both professional and private use.

• Made from HPQ® high-performance steel for high strength
• Closely tolerated internal square according to DIN 3120 for a secure fit
• Optimal accuracy through stress-free hardening in an oil bath
• Round finish surface for additional protection and durability
• Prevents slipping over screw corners and protects screw heads and nuts.