KEO 10390 #3 Plain 90° High Speed Steel Combination Drill & Countersink
KEO Plain Type Combined Drills And Countersinks #3 90° 7/64 H.S.S. Right hand

KEO 10390 #3 Plain 90° High Speed Steel Combination Drill & Countersink

Made In The USA
Item #: 01-096-003
Brand: KEO
Type: Plain
Industry Standard Type: Number
Industry Standard: #3

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  • High speed steel provides good wear resistance in mild steels & non-ferrous materials.


  • 82° popular for inch size flat head screws.
  • 90° popular for metric size flat head screws.


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Keo 10390 #3 (7/64") HSS 90° Plain Type Combined Drill & Countersink
Product Specifications
Brand KEO
Type Plain
Industry Standard Type Number
Industry Standard #3
Included Angle 90°
Tool Material High Speed Steel
Finish Coating Bright
Drill Diameter 7/64"
Body Diameter 1/4"
Cutting Direction Right Hand
First Choice For: Steel
General Application Used when producing a center hole on a workpiece for turning & cylindrical grinding
Hardness 58 to 60 RC
Model # 10390
OC_Wood X
Overall Length 1-1/4"
Prop. 65 Yes
Weight 0.0033 lbs.
Workpiece Material General Purpose
Workpiece Material Range Steel, Non-Ferrous, Cast Iron, Plastics
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.