Torx® Insert Screwdriver Bits
1/4" Hex Shank - Extra Hard
These compact insert bits require use of a bit holder - each is built with a snap ring notch for such use. The Extra Hard Bits are recommended for driving heat-treated or case-hardened screws, such as sheet metal or self-tapping and self-drilling screws. Note that the Torx® style of driver bits is becoming more widely used.
More information is available through the "Product Datasheet" link below.
Click on the product thumbnails below for more details