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 $47.40
  11/32  .3438    1/  3/ 670622 50.50
   3/  .3750    1/         670624 54.25
  13/32  .4063    1/  1/ 670626 63.60
   7/16  .4375    1/  1/ 670628 73.70
  15/32  .4688    1/  3/ 670630 80.95
   1/  .5000    1/         670632 95.00
   7/16  .4375    3/  1/ 670728 73.70
  15/32  .4688    3/  3/ 670730 80.95
   1/  .5000    3/         670732 95.00
  17/32  .5313    3/         670734 108.95
   9/16  .5625    3/         670736 112.70
  19/32  .5938    3/         670738 119.25
   5/  .6250    3/         670740 122.90
  21/32  .6563    3/  1/ 670742 131.50
  11/16  .6875    3/  1/ 670744 135.05
  23/32  .7188    3/         670746 141.50
   3/  .7500    3/         670748 145.30
   9/16  .5625    1/         670836 112.70
  19/32  .5938    1/         670838 119.25
   5/  .6250    1/         670840 122.90
  21/32  .6563    1/  1/ 670842 131.50
  11/16  .6875    1/  1/ 670844 135.05
  23/32  .7188    1/         670846 141.50
   3/  .7500    1/         670848 145.30
  13/16  .8125    1/         670852 260.55
   7/  .8750    1/         670856 266.00
  15/16  .9375    1/         670860 296.40
        1.0000    1/         670864 314.45
  13/16  .8125    3/         670952 260.55
   7/  .8750    3/         670956 266.00
  15/16  .9375    3/         670960 296.40
        1.0000    3/         670964 314.45