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40740
MAGNUM DRILL 3/8 * MAGNUM PREMIUM DRILL BIT 135 *

 Additional Information
 
 

MECHANIC’S LENGTH J&B MAGNUM PREMIUM

ASSORTMENT     Easy Out Set
    3044        

FEATURES

  • 135° Split Point-Gold Tip
  • Special HI-MOLYBDENUM tool steel is heat treated at 2185°F and then nitrocarburize finished at 950°F to be measurably HARDER THAN HIGH SPEED STEEL .
  • 135° split point for fast penetration and ACCURATE STARTING without center punch.
  • Body and clearance are gold surface treated for MAXIMUM LUBRICITY.
  • FLATS ON SHANK give positive chuck-grip and virtually eliminate drill/chuck slippage.
  • Recommended for use in work hardening grades of stainless steel and other hard metal drill applications.
  • MECHANICS LENGTH: The shorter overall length and reduced flute length results in a stronger more rigid drill with greater breakage resistance.
A MAGNUM DRILL with it's thin WEB will penetrate stainless fast enough to continually cut beneath the chip which is hardening from deformation. THIS MEANS THE DRILL IS CUTTING SOFTER STEEL.

  PART NO.     DRILL  
  DIAMETER   		  DECIMAL  
  EQUIVELENT  
  INCHES   		  OVERALL  
  LENGTH   		  QTY  
  40720          1/16     .0625          1-7/8     EA  
  40721          5/64     .0781          2     EA  
  40722          3/32     .0938          2-1/4     EA  
  40723          7/64     .1094          2-3/8     EA  
  40724          1/8     .1250          2-1/2     EA  
  40725          9/64     .1406          2-5/8     EA  
  40726          5/32     .1562          2-3/4     EA  
  40727          11/64     .1719          2-7/8     EA  
  40728          3/16     .1875          3     EA  
  40729          13/64     .2031          3-1/8     EA  
  40730          7/32     .2188          3-1/4     EA  
  40731          15/64     .2344          3-3/8     EA  
  40732          1/4     .2500          3-1/2     EA  
  40733          17/64     .2656          3-5/8     EA  
  40734          9/32     .2812          3-3/4     EA  
  40735          19/64     .2969          3-7/8     EA  
  40736          5/16     .3125          4     EA  
  40737          21/64     .3281          4-1/16     EA  
  40738          11/32     .3438          4-1/8     EA  
  40739          23/64     .3594          4-3/16     EA  
  40740          3/8     .3750          4-1/4     EA  
  40741          25/64     .3906          4-5/16     EA  
  40742          13/32     .4062          4-3/8     EA  
  40743          27/64     .4219          4-7/16     EA  
  40744          7/16     .4375          4-1/2     EA  
  40745          29/64     .4531          4-5/8     EA  
  40746          15/32     .4688          4-3/4     EA  
  40747          31/64     .4844          4-7/8     EA  
  40748          1/2     .5000          5     EA