Reduced Shank Fractional


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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 $41.40
  11/32  .3438    1/  3/ 670622 44.10
   3/  .3750    1/         670624 47.40
  13/32  .4063    1/  1/ 670626 55.55
   7/16  .4375    1/  1/ 670628 64.40
  15/32  .4688    1/  3/ 670630 70.70
   1/  .5000    1/         670632 82.95
   7/16  .4375    3/  1/ 670728 64.40
  15/32  .4688    3/  3/ 670730 70.70
   1/  .5000    3/         670732 82.95
  17/32  .5313    3/         670734 95.20
   9/16  .5625    3/         670736 98.45
  19/32  .5938    3/         670738 104.15
   5/  .6250    3/         670740 107.35
  21/32  .6563    3/  1/ 670742 114.85
  11/16  .6875    3/  1/ 670744 117.95
  23/32  .7188    3/         670746 123.60
   3/  .7500    3/         670748 126.95
   9/16  .5625    1/         670836 98.45
  19/32  .5938    1/         670838 104.15
   5/  .6250    1/         670840 107.35
  21/32  .6563    1/  1/ 670842 114.85
  11/16  .6875    1/  1/ 670844 117.95
  23/32  .7188    1/         670846 123.60
   3/  .7500    1/         670848 126.95
  13/16  .8125    1/         670852 227.60
   7/  .8750    1/         670856 232.35
  15/16  .9375    1/         670860 258.90
        1.0000    1/         670864 274.65
  13/16  .8125    3/         670952 227.60
   7/  .8750    3/         670956 232.35
  15/16  .9375    3/         670960 258.90
        1.0000    3/         670964 274.65