PILOT DRILL BIT
Betalent carbide pilot drill bits are made of selects precise h6 ground carbide rods ( the carbide grade is selected according to the workpiece hardness and toughness), the flutes, angle and chip removal grooved well designed by professional engineer, and manufactured by 5-axil Walter grinding machine, which ensure the good performance of the drill bits. There are 60degree tip angle, 90° and 120° for general application, among them, large quantity of 90° pilot drill bits are stocked in Betalent carbide warehouse for a quick delivery.
d Cutting dia.(mm)
D Shank dia.(mm)
Lc Cutting length(mm)
L Overall length (mm)
1.0
3
3
50/25
1.5
3
3
50/25
2.0
3
6
50/25
2.5
3
6
50/25
3.0
3
6
50/25
4.0
4
7
50/25
5.0
5
8
50/25
6.0
6
8
50/25
8.0
8
10
60/30
10.0
10
16
60/75
12.0
12
18
75
3.0/6.0
3.175
12
38