Product Features 

• Drill Diameter: 4.20mm
• Decimal Equivalent: .1654"
• Length Of Cut: 54mm
• Number of Flutes: 2
• Overall Length: 75mm
• Direction of Cut: Right Hand
• Size Type: Metric Size
• Geometry/Tool Specs: 118° Point
• Material: High Speed Steel
• Finish/Coating: Oxide Finish
• Shank Type: Straight Shank
• Includes 12 Pieces

For best wear resistance and better lubrication of tool surface which reduces heat and tendency to chip weld.