(100 pieces / pack) 3/8" square to 1/4" hex adaptor, 2" long. Insert bits can be used in screwdrivers or power tools with BWT magnetic bit holder (STK# 88000)
- Great for industrial automotive and DIY homeowner
- Machined from S2 tool steel
- Plastic tub with cap safely stores all your bits for use when you need them
- Professional grade
- Precision-machined tips for exact fit