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Drill America VAC3 step drill bit, polished high-speed steel, round shank, 118 degree point

Drill America

Drill America VAC3 Step Drill Bit 118° Conventional Point

SKU CH-4RST-QZKT2

A high-speed steel step drill with a single radial concave flute cuts perfectly round holes in thin metal, plastic and wood without centre punching and automatically deburrs the top edge

  • TypeDrill Accessories
  • High-speed molybdenum steel construction delivers extended tool life
  • 118° conventional point starts drilling instantly without center punching
  • Single radial concave flute produces perfectly round holes in thin materials
  • Self-starting tip eliminates need for pilot holes in sheet metal
  • Automatically deburrs hole edges while drilling through steel and aluminum

Drill America VAC3 Step Drill Bit

The Drill America VAC3 is a high-speed steel step drill bit designed for creating multiple hole sizes in thin materials. It suits metalworkers and fabricators who need to drill steel, copper, or aluminium without switching bits. The 118-degree conventional point allows for self-starting action on sheet metal and plastics.

Practical limits of step drilling thin materials

Step drills excel in thin sheet stock but lose effectiveness once material thickness exceeds the step height. The single radial concave flute design cuts round holes in metal, plastic, and wood without centre punching. An uncoated bright finish means the tool relies on base steel hardness rather than a wear-resistant coating. Heat buildup can accelerate edge wear in abrasive alloys.

Round shank installation and common issues

The round shank fits standard three-jaw drill chucks but can slip under high torque if not tightened securely. No centre punching is needed thanks to the self-starting tip, which also deburrs the top side of the hole automatically. Dulling occurs faster if cutting fluid is omitted during prolonged use. The flute can be resharpened by the user to restore cutting performance.

Highlights

  • High-speed molybdenum steel construction delivers extended tool life
  • 118° conventional point starts drilling instantly without center punching
  • Single radial concave flute produces perfectly round holes in thin materials
  • Self-starting tip eliminates need for pilot holes in sheet metal
  • Automatically deburrs hole edges while drilling through steel and aluminum

Specifications

BrandDrill America
TypeDrill Accessories

Questions about this item

Should I pick the VAC3 #9 size for my 1/4" to 3/4" holes?

The VAC3 #9 covers the full 1/4" to 3/4" range in one bit, so you do not need multiple sizes for that span.

How does the 118° conventional point behave in thin steel?

The 118° point is self-starting and cuts cleanly in thin steel, copper and aluminum without a centre punch.

Will the round shank fit my 3/8" keyless chuck?

The round shank seats securely in any standard 3/8" or 1/2" keyless chuck and does not require a hex adapter.

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