M63 Cobalt Jobbers Length Twist Drill
T&O M63 Cobalt Jobbers Length Twist Drills - Cutting Direction: Right Hand   Size : A   Tool Material: M35 cobalt steel   Shank Style: Straight Shank   Drill Type: Jobbers Length

M63 Cobalt Jobbers Length Twist Drill

Item #: 01-022-201
Brand: T&O
Size Type: Letter
Size: A
Drill Point Angle: 135°

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Suited for tougher materials such as alloys, stainless & manganese steels, etc.


  • M35 is not as brittle as M42 & can withstand more torsional stress.
  • M35 is a development of M2 and contains 5% cobalt which provides improved hardness, wear resistance and red hardness.


  • For most general purpose, heavy duty, drilling operations for tougher materials.
  • Well suited for heavy duty operations in high tensile strength, low machinability, ferrous metals and alloys.
  • The 135° split point works for drilling alloy steels, manganese steels, harder stainless steels and a variety of other tough ferrous alloys.
  • Split point design is self-centering and helps to reduce the thrust requirements.
  • Suitable lubricating/cutting oils or appropriate coolant fluids are recommended for most drilling operations to achieve optimal performance & extended tool life.


  • Right hand (clockwise rotation) cutting direction.
  • Standard two flute design.
  • Standard spiral, helical flutes.
  • Straight shanks that corresponds to the drill diameter.
  • Heat treatment process is controlled by metallurgical lab using advanced computerized instrumentation.

Technical Data

  • Manufactured from cobalt steel.
  • Cylindrically ground.
  • Ground from the solid.
  • Heavy duty, general purpose drills.
  • 135° point angle and a heavier web.
  • Bronze oxide/bright finish depending upon our stock.
T&O Letter A RH M35 Cobalt 135° Jobbers Drill
Product Specifications
Brand T&O
Size Type Letter
Size A
Drill Point Angle 135°
Tool Material M35 5% Cobalt
Finish Coating Bright
Cutting Direction Right Hand
Decimal Size .2340"
Drill Grade Heavy Duty
Drill Type Jobbers Length
Flute Length 2-5/8"
Flute Shape Standard Spiral, Helical Flute
Manufacturing Method Ground From the Solid
OC_Wood X
Overall Length 3-7/8"
Point Sharpening Type Split Point
Shank Style Straight Shank
Type M35 Cobalt Jobbers Length Twist Drills
Weight 0.0315 lbs.
Country of Origin SOUTH AFRICA