• Combined Drills & Countersinks
D908 7 Leaders

Combined Drills & Countersinks

  • 60° Countersink Angle and Plain Short
  • Provide superior wear resistance.
  • Can withstand the highest cutting temperatures in low tensile and highly abrasive materials which suitable for Steels, Bronze, Copper, Rubber,Aluminium, Cast Iron, Stainless Steels…etc.
Steel < 48HRC
P H M K N S
MG
Uncoated Bright
Flute_drill-2Z
Central Point Angle_ 60˚
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
  • Dc. 1/32~5/16 inch
SIZE Dc Lc L d
No. h7 h7 Inch h6
#0 1/32 1/32 1-1/4 1/8
#1 3/64 3/64 1-1/4 1/8
#2 5/64 5/64 1-7/8 3/16
#3 7/64 7/64 2 1/4
#4 1/8 1/8 2-1/2 5/16
#5 3/16 3/16 3 7/16
#6 7/32 7/32 3 1/2
#7 1/4 1/4 3-1/4 5/8
#8 5/16 5/16 3-1/2 3/4