Thunderbolt 48-89-2734 Jobber Length Drill, 7/16 In Dia X 5-1/2 In Oal, Cobalt

Product Features

• Diameter:7/16 in
• Flute Type:Parabolic
• Point Angle:135 deg
• Point Type:Split
• Material:Cobalt High Speed Steel
• Finish:Black Oxide
• Thunderbolt web, provides longer life and faster driller times
• Parabolic flute, clears chips faster
• 135 deg split point, precision start no walking