Specifications
Sizes:3/4"x1/2",5/8"x1/2",1/2"x1/4",3/8"x1/4",1/4"x1/4".5 pieces countersink drill bits in total.
Counter sink degree:82°
Shank style:Round
Material:High Speed Steel(HSS)
Finish/Coating: Bright
Number of flute:6
Packing:plastic box
Application
1.Different chip groove, can be used in different working conditions;6 flutes design better for chips-removing and drilling.
2.Countersink drill bits can achieve exact countersinking holes and perfect chamfering deburring work,leave the metal surfaces smooth.
3.These countersinks are not for drilling,should with lower speed and flood coolant,for safety and correct usage.