Reduced Shank Fractional


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MATERIAL MACHINEDTOOL TYPE
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 80  LOW STRENGTH STEELS  672 / 673 
 100  MEDIUM STRENGTH STEELS (UP TO 50 Rc)  672 / 673 
 100  MEDIUM STRENGTH STEELS (OVER 50 Rc)  670 / 671 
 120  HIGH STRENGTH STEELS (UP TO 50 Rc)  673 / 672 
 120  HIGH STRENGTH STEELS (OVER 50 Rc)  671 / 670 
 140  HIGH TEMPERATURE ALLOYS  673 / 672

Type 670 Reduced Shank Fractional - 118ยบ Point With Negative Edge
Carbide Tipped
  • Die drill - negative angle cutting edge
  • Drill body diameter smaller than tool diameter to prevent gauling
  • Carbide tip high temperature brazed to hardened tool steel body
  • Smooth flutes for effective chip flow
  • Precision ground to insure concentricity of tip & body
  • All dimensional & element tolerances conform to one of:
    ASME/ANSI B94.11M
    ISO - International Organization for Standardization
    NAS 907 - National Aerospace Standards
    USCTI - United States Cutting Tool Institute (formerly MCTI)
  Modifications: (Prompt delivery)
  • Modified tool diameter
  • Metric tool diameter
  • Modified point and / or angle
  • Flat(s) on shank
  • Coatings available:
  •  TITANIUM NITRIDE - TiN 
     TITANIUM CARBONITRIDE - TiCN 
     ZIRCONIUM NITRIDE - ZrN 
     AL TITANIUM NITRIDE - AITiN 
Use:
  • Can be used in drill chucks with diameter limitations
  • For drilling hardened steel in the range of 35 to 65 Rockwell C
  • Will cut without annealing the workpiece
  • Light feed with steady pressure - clear chips frequently
  • Flood the cutting point with coolant
Below is a list of standard Reduced Shank Diameter Drills offered by Hannibal Carbide Tool. If you do not see the Reduced Shank Diameter Drills you are looking for you can click here for our SPECIAL TOOL QUOTE REQUEST FORM and fax (573-221-1140) or email your request to Hannibal. Within 24 hours we will let you know how we can supply your Reduced Shank Diameter Drills. For technical assistance with your Drills please click here to fill out and submit our HANNIBAL TECHNICAL SUPPORT QUESTIONNAIRE.
Tool Diameter Dimensions Type 670
EDP NO.
Reduced Shank Fractional
Price
Frac. Dec. Shank Diameter Overall Length
   5/16  .3125    1/  1/ 670620 $51.90
  11/32  .3438    1/  3/ 670622 55.30
   3/  .3750    1/         670624 59.40
  13/32  .4063    1/  1/ 670626 69.65
   7/16  .4375    1/  1/ 670628 80.70
  15/32  .4688    1/  3/ 670630 88.65
   1/  .5000    1/         670632 104.00
   7/16  .4375    3/  1/ 670728 80.70
  15/32  .4688    3/  3/ 670730 88.65
   1/  .5000    3/         670732 104.00
  17/32  .5313    3/         670734 119.30
   9/16  .5625    3/         670736 123.40
  19/32  .5938    3/         670738 130.60
   5/  .6250    3/         670740 134.60
  21/32  .6563    3/  1/ 670742 144.00
  11/16  .6875    3/  1/ 670744 147.90
  23/32  .7188    3/         670746 154.95
   3/  .7500    3/         670748 159.10
   9/16  .5625    1/         670836 123.40
  19/32  .5938    1/         670838 130.60
   5/  .6250    1/         670840 134.60
  21/32  .6563    1/  1/ 670842 144.00
  11/16  .6875    1/  1/ 670844 147.90
  23/32  .7188    1/         670846 154.95
   3/  .7500    1/         670848 159.10
  13/16  .8125    1/         670852 285.30
   7/  .8750    1/         670856 291.25
  15/16  .9375    1/         670860 324.55
        1.0000    1/         670864 344.30
  13/16  .8125    3/         670952 285.30
   7/  .8750    3/         670956 291.25
  15/16  .9375    3/         670960 324.55
        1.0000    3/         670964 344.30