• Series Name: 4
• Diameter (Inch): 2-7/32"
• Diameter (Decimal Inch): 2.2188
• Series Code/Seat Size: 4
• Material: High Speed Steel
• Coating: TiN
• Thickness (Inch): 5/16"
• Included Angle: 132
For general purpose applications in a variety of materials and for drilling in applications where added toughness is required such as unstable set ups on manual machines or cross hole drilling. • Series 1-4: 132º point • Series 5-7: 144º point