TTC PRODUCTION 01-074-028 #28 Size 135° Cobalt Screw Machine Length Stub Drill
TTC PRODUCTION Stub Screw Machine Twist Drills - Drill Point Angle: 135°   Tool Material: COBALT   Drill Type: Stub Length   Overall Length : 1-15/16   Point Sharpening Type: Split Point   Size : #28

TTC PRODUCTION 01-074-028 #28 Size 135° Cobalt Screw Machine Length Stub Drill

Item #: 01-074-028
Size Type: Number
Size: #28
Drill Point Angle: 135°

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  • 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.


  • 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
TTC PROD A131 135° Cobalt Ground Heavy Duty Wire Gage Stub Screw Machine Length Drills
Product Specifications
Size Type Number
Size #28
Drill Point Angle 135°
Tool Material Cobalt
Finish Coating Black Or Bright Finish
Cutting Direction Right Hand
Point Sharpening Type Split Point
Decimal Size 0.1405
Drill Type Stub Length
First Choice For: Stainless Steel
Flute Length 15/16"
Flute Shape Standard Spiral, Helical Flute
Model # 01-074-028
No. of Flutes 2
Overall Length 1-15/16"
Prop. 65 Yes
Series A131
Shank Style Straight Shank
Type Stub Screw Machine Twist Drills
UNSPSC 23241635
Weight 0.01 lb.
Workpiece Material Range Steel, Stainless Steel, High-Temp Exotic Alloys, Cast Iron, Plastics
zFlute Length_Inch_DONOTUSE 15/16
Country of Origin Import
Prop 65 Warning Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.

Other Items to Consider

TTC PRODUCTION Single Flute High Speed Steel Countersinks - Included Angle: 82°     Overall Length : 2   Shank Diameter : 1/4   SIZE : 1/2   No of Flutes: 1
TTC PRODUCTION High Speed Steel Straight Flute Chucking Reamers - Size: #28   Diameter: .1405   Flute Length: 1
TTC Drill Gages - Model: 15   FOR CHECKING DRILL TYPE: #1 to #60