Adaptor 447a bi-hex 1/4" AF 3/8" internal square drive AS-Drive for manual use - Stahlwille 02470016

For screws and nuts with 1/4 inch across flats, this Stahlwille ring socket adaptor 447a 1/4 provides a bi-hex with AS-Drive profile. It takes a 3/8" square drive and measures only 6 mm high at the profile.

Benefits

• Bi-hex with AS-Drive profile: force is transmitted via the flanks, protecting the screw head
• 3/8" internal square drive to take a matching drive tool
• Flat design: height h1 6 mm, height h2 11 mm
• HPQ high-performance steel (High Performance Quality), gunmetal finish
• Made to SAE AS 954-E

Applications

Manual socket work on inch fasteners in assembly, maintenance and repair, especially where there is not enough room for a conventional socket.

Standards

SAE AS 954-E