Expands the size range capacity of a 1/2" portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Precision ground for a high degree of concentricity between shank and body diameter. Ideal for drilling low and medium tensile strength materials.

• Sizes: Fractional
• Material: High Speed Steel
• Finish/Coating: Bright & Black
• Flute Length: 3
• Shank Size: 1/2
• Overall Length: 6