Description
[Ball-bearing lock]-Specific impact grade design made exclusively for drivers and wrenches, spring loaded ball bearings on each square head securely and locks into sockets to avoid slippage during using.[High Quality]- Each socket adapter is constructed of heat treated vanadium steel and black oxide coated, and the adapters and reducers are made from premium Chrome Moly Steel with a Manganese Phosphate coating to help resist rust and corrosion.[UNIVERSAL SIZE]- Suitable for Quick Change 1/4-Inch Chuck Systems or Directly into Drill Chuck.Any power cordless drill into a power nut driver. Handy for Fast Driving of Nuts, Bolts and Fixings, etc.[Wide Application]-used in the installation of pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installation for the hexagonal tool. It is a good accessory for conversion..[Included]-8-piece Extension Set 4 x 1/4", 2 x 3/8", and 2 x 1/2" Drive each with a 1/4'' hex shaft shank. 4-piece socket adapter 1/4 to 3/8 - 3/8 to 1/4 inch - 3/8 to 1/2 - 1/2 to 3/8
