Certified TTC PRODUCTION 01-074-020 20 Size 135° Cobalt Screw Machine Length Stub Drill

Applications

• Primarily designed for machining operations in screw machines.
• Short length offers increased rigidity for machine drilling a variety of materials and alloys.
• Best suited for drilling steel, cast steel, cast iron, or other alloyed or non-alloyed ferrous materials, they also work well for a variety of non-ferrous and non-metallic materials.
• May be used with hand held manual drills and either portable or stationary machines.
• For optimal performance and the best tool life, suitable lubricating/cutting oils or the appropriate coolant fluids are recommended.

Features

• Right hand (clockwise rotation) cutting direction.
• Standard two flute design.
• Standard spiral, helical flutes.
• Straight shanks correspond to the drill diameter.
• Stub lengths are proportional to the drill diameter.

Technical Data

• Manufactured from high speed steel.
• Precision ground flutes.
• Cylindrically ground.
• 118° point or 135° point angle and standard web thickness.
• 135° split point is self-centering.
• Steam tempered.
• Black finished.

TTC Production

• Black or bright finish depending upon our stock.

Nachi L6563

• Sizes #1 thru #31: black oxide finish
• Sizes #32 thru #52: bright finish