ICS Cutting Tools offers a variety of cobalt drills for many different tooling applications. Cobalt drills withstand very high drilling temperatures and are designed for drilling hard metals such as treated stainless steel, titanium and cast iron.
Aircraft Extension Drills - Cobalt
Cobalt Aircraft Extension Drills are heavy duty Jobber Flute Length Drills with an extended overall length of 6", 12" or 18". For portable or machine drilling in stainless steel, titanium, and other work hardening metals. Manufactured to NAS 907-J specs.

3/64" to 3/4" page 110
#1 to #52 page 111
A to Z page 112
2mm to 12.5mm page 44

Cobalt Aircraft Type "D" Jobber Length Drills with screw machine length flute are designed to handle high thrust loads when drilling through high tensile and heat resistant alloy steels. Its heavy web design provides a more rigid tool for accurate holes elimating vibration and flexing. Ideal for portable drilling.

Type "D" - #1 to #40 page 45
Jobber Length Drills - Cobalt
Cobalt Jobber Length Drills are the most common size of drill. Thicker web construction for extended drill life. Relief ground and twist fluted for maximum strength and rigidity. For portable or machine drilling in stainless steel, titanium, and other work hardening metals. Manufactured to NAS 907-J specs.

1/64" to 11/16" page 42
#1 to #80 page 43
A to Z page 43
1mm to 8.4mm page 44
8.5mm to 13mm page 45

3/8" Reduced Shank

25/64" to 11/16" page 42
10mm to 13mm page 45

3 Flats on Shank

3/16" to 1/2" page 37B
Screw Machine Length Drills - Cobalt
Cobalt Screw Machine Length Drills were originally developed for screw machine operations where regular length drills were too long. The short length design reduces breakage and runout. They are now used in portable drilling where short, rigid drills are a requirement and are especially suitable for N/C drilling applications. Cobalt composition is used for drilling in tough alloys, stainless steel, titanium inconel and other work hardening metals.

3/64" to 1" page 18
#1 to #60 page 19
A to Z page 19
Silver and Deming Drills - Cobalt
Cobalt Silver and Deming Drills are used wherever the maximum chuck capacity is 1/2". For portable or machine drilling in hard steels, stainless steels and other hard materials. The split point is self centering and breaks up chips. Sizes over 1" are 118° split point.They are also called S&D Drills, Blacksmith Drills or Prentice Drills (Canada). All Silver and Deming Drills are 6" overall length with 3" flute length.

33/64" to 1-1/2" page 73

3 Flats on Shank
Flats are ground on three sides of drill shank for positive holding in 3 Jaw Chucks.

33/64" to 1-1/2" page 73
Taper Length Drills - Cobalt
Cobalt Taper Length Drills are drills with increased cutting length. They are manufactured with straight shanks of the same diameter as that of the flute diameter. Taper length drills derive their name from having the same flute length as taper shank drills. In Europe, these drills are known as Long Series Drills or Long Jobber Drills. Cobalt composition is used for drilling in tough alloys, stainless steel, titanium inconel and other work hardening metals.

1/16" to 1" page 82
#1 to #60 page 83
A to Z page 83
Taper Shank Drills - Cobalt
Cobalt Taper Shank Drills have a tanged conical shank to fit directly into the tapered holes of drill press spindles, driving sleeves or sockets.

1/4" to 2" page 100
Threaded Shank Adapter Drills - Cobalt
Cobalt Threaded Shank Adapter Drills are used for heavy duty drilling in hard, tough tensile strength materials in confined areas. They are manufactured with true concentricity for more accurate holes. They are often referred to as Snake Drills.

#2 to #40 page 125B
3/32 to 1/4 page 125B
D and F page 125B