UAN537-Drillco® Aircraft Extension Drill Bit

• Manufactured to NAS 907 Type C specifications, 135 degree split point, surface treated with jobber flute lengths for drilling holes in hard to reach places
• Heavy-duty construction for portable or machine drilling in high tensile strength alloy steels

Specifications

• Material: High Speed Steel
• Drill Size: 7/16"
• Decimal Drill Size: 0.4375"
• Overall Length: 12"
• Flute Length: 4-1/16"
• Point Angle: 135°

Additional Specifications

• Finish: Black Oxide