6 Pack 3/8 inch(10mm) Square Socket Adapter Bit Set Impact Driver Power Bits for Automotive DIY-1/4 Hex Shank

FUNCTION: This socket adapter is specially designed and used for manual drive applications or with power tools when used with plug-in shanks. MATERIAL: This socket adapter is made of hardened and treated HSS. which has great strength and endurance for long time use. SIZE: Square Tip Size : 10mm / 3/8 ; Hex Shank Size (Approx.) : 6.3mm / 1/4 SPECIAL DESIGN: This socket adapter has a very special design part of spring-loaded ball bearing on each square head. in order to effectively fix the socket and avoid sliding. DOUBLE SIZE CONVERSION: The original hexagonal polygon size is converted to a square head size. which can be used to mount the sleeve as a good accessory for conversion.