S-carb APR-4 end mill series logo

S-Carb APR-4


The S-Carb Advanced Productivity Rougher (APR) was engineered for high power, high-efficiency machining of aluminum aerospace structural parts. Material removal rates of 550 cubic inches is achievable with remarkable tool life and product finish. The APR'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.

View Products
Download Brochure
S-carb APR-4 end mill group image



4 flute end mill icon
  • New 4-flute variable geometry with open fluting for deep slotting and profiling.

Through Coolant Options

Through coolant end mill 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.
  • Variable pitch geometry allows for 600 cubic inches per minute MRR capability.


Ti-Namite-B icon
  • 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-4 with internal through coolant white line drawing

Series Details

Lineup Details

  • Cutting Diameter: 20,0 mm - 25,0 mm
  • Length of Cut: 35,0 mm
  • Overall Length: 86,0 mm - 140,0 mm
  • Shank Diameter: 20,0 mm - 25,0 mm
  • Reach: 45,0 mm - 90,0 mm
  • Corner Radius: 2,0 mm - 5,0 mm
  • Coating(s): Ti-NAMITE-B
  • Special Options: JetStream Technology, Side exit coolant holes

Primary Material Applications

  • Non-Ferrous

Industry Applications

Aerospace icon




Tools for Aluminum Brochures cover image

Tools for Aluminum Brochure


Tooling Matrix cover image

Tooling Matrix


S-carb APR-4 speed and feed cover image

S-Carb APR-4

Speed / Feed

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


Need help with an application or require sales assistance? Our field sales engineers can help you find the right solution for the job.

Contact Sales


SGS products are sold through an extensive global network of exceptional distribution partners.

Find a Distributor
This site uses cookies to improve your experience. By clicking, you agree to our Privacy Policy.