S-carb APR-3 logo

S-Carb APR-3


The S-Carb® Advanced Productivity Rougher (APR-3) was engineered for high power, high efficiency machining of aluminum aerospace structural parts. Material removal rates (MRR) of 600 cubic inches is achievable with remarkable tool life and product finish. The APR-3's MRR capabilities are nearly six times that of its nearest competition based on lab testing. It is easy to see why KYOCERA SGS Precision Tools is known around the world as an authority in aluminum machining with the power and capability of the APR and its sibling tool, APF.

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S-carb APR-3 end mill group image



3 Flute end mill icon
  • New 3-flute variable geometry with open fluting for deep slotting and profiling.

Through Coolant Options

Through internal coolant Icon
  • Side exit coolant holes deliver coolant effectively to the cutting zone.
  • Select fractional and metric diameters in stock.


End mill icon
  • Designed for machine tools with a capability of 12 L³ per minute material removal rates.
  • Ultra high-productivity rougher for Aluminum alloys, specifically for aircraft components.
  • 1XD full slotting capability up to 5XD reach.
  • Variable pitch geometry allows for 600 cubic inches per minute MRR capability.


Ti-Namite-b logo
  • This ceramic-based coating ensures a smooth surface and a low affinity to cold welding or edge build-up, which makes it optimal for aluminum and copper applications. It has high toughness and high hardness.
S-carb APR-3 with internal or through coolant white line drawing

Series Details

Lineup Details

  • Cutting Diameter: 1/2" - 1"| 12,0 mm - 25,0 mm
  • Length of Cut: 1" - 1 3/4" | 26,0 mm - 35,0 mm
  • Overall Length: 3 1/4" - 6 1/4" | 83,0 mm - 176,0 mm
  • Shank Diameter: 1/2" - 1" | 12,0 mm - 25,0 mm
  • Reach: 1 1/2" - 4 1/4" | 38,0 mm - 105,0 mm
  • Corner Radius: .030 - .120 | 1,0 mm - 5,0 mm
  • Coating(s): Ti-NAMITE-B
  • Special Features: Side Exit Coolant Holes, Jet Stream Technology

Primary Material Applications

  • Non-Ferrous

Industry Applications

Aerospace Icon




APR-3 Brochure cover image

APR-3 Brochure


Aerospace Machining Solutions cover image

Aerospace Machining Solutions


Aluminum Tooling Brochure cover image

Aluminum Tooling Brochure


Tooling Matrix cover image

Tooling Matrix


S-carb APR-3 Speed and Feed cover image

S-Carb APR-3

Speed and Feed

Turbine blade manufactured on a 5th axis CNC machine and an end mill.


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