Sunex 2639 1/2-Inch Drive Metric Impact Hex Driver Set, 10-Piece Other Tools Designed for hand threading work

Designed for hand threading work in a variety of materials | Ideal for routine maintenance repair work and for rethreading where high accuracy and tolerance thre | Straight flutes are ground to provide rapid chip removal for efficient threading | Taps produce a class 2B threadFeatures and Benefits: Material types: High carbon steel for hand tapping applications and High speed steel for machine tapping where critical dimensions are required

The ranges provides impact from 3/8” to 2 ½” square drive sizes

Power comes from 3 AAA batteries (included)

Polished Brass | This item is used for Rough Plumbing

Sunex 2639 1/2-Inch Drive Metric Impact Hex Driver Set, 10-Piece Other Tools Designed for hand threading workCR MO alloy steel for long life Lifetime warranty Heavy duty blow molded storage case Includes most common metric hex sizes used for automotive repairs Metric mm: 6,7,8,10,12,14,15,17,18,19CR MO alloy steel for long life.