Tap pilot mushroom drill

[Features]
· Specializes in pilot holes. (*Quantity: 1 piece)
· Supports multiple sizes as only spiral step drills can do.
· Just one unit can be used to drill various sized tap pilot holes.
· Made using cobalt HSS.
· A durable type with excellent cutting performance.
· Titanium coating which prevents welding of chips.
· Maintains stable cutting capability.
· Dimension display with laser marking.
· The hole dimensions are not erased.