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1/16-1/2" by 64ths 115pcs Cobalt Jobber Drill Set

SKU
404-2203C
$217.10
In stock

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More Information
drill categoryDrill Sets
BrandShars Tool
Mfg SKU #404-2203C
Materialcobalt M35
finish coatingstraw finish
drill gradeheavy duty
Point Angle135
type sizeFraction,Letter,Wire Gauge
Coolant ThroughNo
drill set size range1/16-1/2,A-Z,#1-#60
drill set stylejobber drill
Number of Pieces115
flute form byground
Number of Flutes2
Flute DirectionRight Hand Spiral
Shank Typeround shank

Spotlight

  • M35 & M42 provides better wear resistance, higher hardness and toughness than HSS. M35 has some of the increased red-hardness properties of M42 and it's not as susceptible to shock. M42 has excellent resistance to abrasion and very good red-hardness for working on cast iron, heat-treated steels and titanium alloys. Cobalt drill bit also has very little chipping or microchipping under severe cutting conditions, allowing tool to run 10% faster than HSS. Cobalt drill set comes in American made, rugged all steel drill index case from Huot Manufacturing.
  • 135° Self-centering Split Point prevents walking when starting a hole and is commonly on heavy duty tools.
  • Heavy duty drill bit usually combine a split point to prevent walking and stronger flute for better rigidity. Excellent choice for harder material.
    • Workpiece material: SAE1045.
    • Workpiece material hardness: HRC15
    • Drilling Operation: blind hole drilling
    • Drill Diameter: 15/64"
    • Cutting Parameters: Vc=62 SFPM; fr=0.0078 in/r; H=0.826in
    • Cooling System: water soluble cooling
    • Conclusion: Industrial grade M35 cobalt drill has performed 266 numbers of holes before showing normal wear. Shars industrial grade HSS6542 drill has performed 194 numbers of holes before showing normal wear while generic import grade HSS4241 tin coated drill from company A has performed 80 numbers of holes before showing edge chipping.
    • Grade M35 drill set from Shars Tool has shown significant improvement in tool life than other generic import drills on the market.
    • Better life improves machining efficiency.
  • Ground from the solid
  • Straight Shank
  • Right Hand
  • Straw finish
  • Forged drill type

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