• Combined Drill and Chamfer Tool
D419FT 7 Leaders

Combined Drill and Chamfer Tool

  • 140° Step Drills
  • Design for pre-drilling diameter of Metric Thread, and drilling with chamfering 90° at once.
  • Good wear resistance and lubricating effect with Nano multilayer coating.
  • Application for drilling steels below 48HRC, cast iron...and etc.
Steel < 48HRC
P H M K N S
VHM
AlTiCrN
Flute_drill-2Z-R
Point Angle-step drill_ 90˚
Point Angle_140˚
Steel<48HRC
Work Material
P H M K N S
GR1 GR2 GR3 GR4 GR5 GR6 GR7 GR8 GR9 GR10 GR11 GR12 GR13 GR14 GR15 GR16 GR17
Carbon Steel <24HRC
Low-alloyed Steel
<30HRC
Hi-Alloyed Steel
30~38HRC
Hardened Steel
38~48HRC
Hardened Steel
48~56HRC
Hardened Steel
56~68HRC
Hardened Steel
Stainless Steel Cast Iron Aluminium Copper Plastics FRP CFRP Composite Material Graphite Titanium Nickel High Temp Alloys
Product Specification
  • M3~M12
For Thread size D1 L1 L2 L d
mm mm mm mm h6
M3 2.5 8.8 28 66 6
M4 3.3 11.4 28 66 6
M5 4.2 13.6 28 66 6
M6 5 16.5 41 79 8
M8 6.8 21 47 89 10
M10 8.5 25.5 55 102 12
M12 10.2 30 60 107 14