Stahlwille Inch 1/2" bi-hex sockets, 1-1/4"

Stahlwille 50a is a 1/2" drive bi-hex socket range in inch sizes from 3/8 to 1 1/2", 20 sizes in all. Lengths step from 38mm up to 54mm as the size grows.

The bi-hex (double hexagon, 12-point) profile carries Stahlwille's AS-Drive (Anti-Slip Drive) form, which transmits high forces to the flats of nuts and bolts without damaging them. The sockets are HPQ steel, chrome-plated, for hand operation only. The range is made to ASME B 107.1 / Fed. Spec. GGG-W-641 / SAE AS 954-E (test values).

Where this product is used

• Inch-series fasteners from 3/8 to 1 1/2" turned with a 1/2" drive ratchet or handle
• Work on equipment built to inch sizes
• Workshop sets that pair a metric 50 set with inch sizes

Features

• 1/2" internal square drive, inch sizes 3/8 to 1 1/2"
• Lengths from 38 to 54mm, stepped by size
• Bi-hex (12-point) profile with AS-Drive anti-slip form
• HPQ steel, chrome-plated
• Hand operation only
• Made to ASME B 107.1 / Fed. Spec. GGG-W-641 / SAE AS 954-E (test values)

Key specifications

Choosing the right option

The 50a is the standard-length 1/2" inch socket. It includes the odd inch sizes 19/32 and 25/32 as well as the usual sixteenths. When the fastener is recessed, the Stahlwille 51a 1/2" Drive Long Bi-Hex Sockets is 83mm long. For metric fasteners see the Stahlwille 50 1/2" Drive Bi-Hex Sockets. Above 1 1/2" move to the 3/4" drive Stahlwille 55a 3/4" Drive Bi-Hex Sockets.

Related Stahlwille products: Stahlwille 512-2K 1/2" Drive Reversible Ratchet, Stahlwille 512SG-QRN 1/2" Drive QuickRelease Fine-Tooth Ratchet, Stahlwille 517QR 1/2" Drive QuickRelease Flexible-Joint Ratchet, Stahlwille 509 1/2" Drive Extension Bars.