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0.375-in Dia 3-Flute End Mill, 1-in LOC, 0.375-in Shank, 2.5-in OAL, 0.01-in Chamfer

The A1-303 series carbide end mill allows you to machine deeper parts, slots and walls in a single pass with minimal chatter and vibration. This tool is excellent for high speed machining. This series comes with polished flutes and Mirror Edge to eliminate chatter and vibration in high speed machining of aluminum and non-ferrous materials. This tool is best used on spindles under 20,000 RPM. You need to use flood coolant with this tool. The shank tolerance is the best in the industry H4 tolerance on all sizes larger than 5/16" and H5 on end mills smaller than 5/16" This eliminates tools pulling out of tool holders. See the video of this tool in action!

PREVIEW AND DIAGRAM (A1-303)

Specifications

Cutting Diameter 0.375″
Shank Diameter 0.375″
Flute Length 1″
Corner Chamfer 0.01″
Corner Radius
Reach Length
Overall Length 2.5″

Tolerances

Cutting Diameter−.001/−.0015″
Length of Cut+.060/−.000″
Shank Diameter−.0001/−.0002″
Overall Length±.060″

Catalog

Catalog Page 14

Speed & Feeds

Tool DiameterAluminum 6061-T6Aluminum 6061-T3Aluminum 7075Aluminum 2024
DiamRPMCLPTRPMCLPTRPMCLPTRPMCLPT
1/8"Max0.0020"Max0.0018"Max0.0020"Max0.0020"
3/16"Max0.0030"Max0.0026"Max0.0030"Max0.0030"
1/4"Max0.0040"Max0.0035"Max0.0040"Max0.0040"
5/16"Max0.0050"Max0.0044"Max0.0050"Max0.0050"
3/8"Max0.0060"Max0.0053"Max0.0060"Max0.0060"
1/2"Max0.0080"Max0.0070"Max0.0080"Max0.0080"
5/8"Max0.0100"Max0.0088"Max0.0100"Max0.0100"
3/4"Max0.0120"Max0.0105"Max0.0120"Max0.0120"
1"Max0.0160"Max0.0140"Max0.0160"Max0.0160"

Other Tools in this Series

Cutting Dia. Shank Dia. Flute Length Corner Chamfer Corner Radius Reach Length Overall Length Tool # Coatings Pg. #
0.125″0.125″0.375″0.005″1.5″A1-303-04Uncoated  DLC14
0.1875″0.1875″0.5625″0.005″2″A1-303-06Uncoated  DLC14
0.25″0.25″0.75″0.005″2.5″A1-303-08Uncoated  DLC14
0.3125″0.3125″0.875″0.005″2.5″A1-303-10Uncoated  DLC14
0.5″0.5″1.125″0.01″3″A1-303-16Uncoated  DLC14
0.625″0.625″1.25″0.01″3.5″A1-303-20Uncoated  DLC14
0.75″0.75″1.625″0.01″4″A1-303-24Uncoated  DLC14
1″1″2″0.015″4″A1-303-32Uncoated  DLC14
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SPEEDS & FEEDS