Set includes: 0.08, 0.09, 0.09, 0.12, 0.13, 0.14, 0.16, 0.18, 0.19, 0.2 inch (2.0, 2.3, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0 mm).
Drive: 1/4-inch (6.4 mm).
Compatible Tools: Drill Machine, Electric Drill, Rechargeable Drill Driver, Rechargeable Impact Driver.
Specifications: For iron, stainless steel, aluminum, short sizes.