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Drill America 12 inch black oxide high-speed steel reduced-shank drill bit .625 inch diameter .5 inch shank

Drill America

Drill America DWDDL 5/8" 12" Reduced-Shank Drill Bit

SKU CH-V4C8-VR46F

High-speed steel drill bit with 12 inch overall length and .5 inch reduced shank for deep-hole reach in steel and iron

  • High-speed steel delivers hardness and toughness for wear resistance
  • Black oxide finish adds lubricity and holds coolant near the cutting edge
  • Reduced 1/2" shank fits a wide variety of toolholding systems
  • 12" overall length with 9" flute reaches deep holes
  • 118-degree point and right-hand spiral flutes evacuate chips efficiently

5/8″ 12″ Reduced-Shank Drill Bit

The Drill America DWDDL bit is a high-speed steel tool with a 0.625-inch cutting diameter and 12-inch overall length. Its 0.5-inch round shank fits standard three-jaw chucks while the reduced-shank design allows drilling larger holes without a larger chuck capacity. General-purpose machinists and maintenance technicians gain extra reach for deep-hole work in iron and steel.

118-Degree Point and Spiral Flutes

The 118-degree cutting angle suits broad material ranges but is not optimised for hard or abrasive alloys that demand split-point or specialised geometries. Black-oxide finish adds lubricity and holds coolant near the edge, yet the treatment does not replace flood coolant in high-heat applications. Right-hand spiral flutes evacuate chips upward, so the bit is unsuitable for left-hand spindle rotation.

9-Inch Flute Length

The 9-inch flute length defines the maximum effective drilling depth before chip packing becomes a concern. Users needing deeper holes in a single pass cannot meet that need with this bit. Builders requiring a larger shank diameter for heavy-duty toolholders must select a different series.

Highlights

  • High-speed steel delivers hardness and toughness for wear resistance
  • Black oxide finish adds lubricity and holds coolant near the cutting edge
  • Reduced 1/2" shank fits a wide variety of toolholding systems
  • 12" overall length with 9" flute reaches deep holes
  • 118-degree point and right-hand spiral flutes evacuate chips efficiently

Specifications

No published specifications for this item yet.

Questions about this item

What does the 5/8 inch cutting diameter mean for the holes I can drill?

The 5/8 inch (.625) cutting diameter produces a 5/8 inch hole. The 1/2 inch (.5) reduced shank fits standard 1/2 inch chucks so the bit can be used on common drill presses and large hand drills.

How does the 12 inch overall length with 9 inch flute length work in a real machine?

The 12 inch overall length and 9 inch flute length give extra reach for deep holes or drilling through thick workpieces while the spiral flutes evacuate chips to reduce clogging.

What does the 118 degree point angle mean for drilling steel?

The 118 degree point angle is a general-purpose geometry suitable for a broad range of iron and steel materials. The black oxide finish adds lubricity and holds coolant near the cutting edge.

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