The Irwin Torx insert screwdriver bits are engineered for use in hand-driving applications or with power tools. They are designed for use in an insert holder with C-clip for retaining ring notch. They are compact and versatile with a 1/4 inch hex body and made from high grade S2 Steel.

The Irwin IRW10504355 screwdriver Torx bits (10) come in the following dimensions:
T27 x 25mm.