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AVTNAGKEYHSS-CO G 2 Flute Keyway End Mill 6244PSold0pcsNACHI 6244P is the 2-flute keyseat (keyway) cutter in the TiN coated line. It plunges straight down without a pilot hole; for ordinary slotting 6272P 2GE is enough - this one is ground to keyway tolerances. It is made from cobalt high speed steel (HSS-CO) with NACHI's G coating, a TiN-based general-purpose layer with excellent adhesion to HSS. Sizes cover diameter 3~20mm, flute length 6~20mm, overall length 50~85mm, shank diameter 6~20mm, 2 flutes, 46 in total, made in Japan. H, K and L end-face types are all grouped under this product; choose by keyway specification. It suits carbon and alloy steel, stainless steel, cast iron with workpiece hardness up to HRC35. Typical uses: shaft keyways, keyseat milling, and closed slots that require vertical plunging. The family also includes 6272P 2GE for ordinary slotting (flute length 2~70mm, diameters to 50mm); this one is ground to keyway dimensions and tolerances and the two are not interchangeable. Can it plunge straight down? Yes - the end teeth cut on plunging, so no pilot hole is needed; diameter 3~20mm, with H, K and L end-face types included.
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Product Categories
Cutting ToolsEnd MillForm Milling Cutter
HSS-CO G 2 Flute Keyway End Mill 6244P
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Keyseat Cutter

HSS-CO G 2 Flute Keyway End Mill 6244P

NACHI 6244P is the 2-flute keyseat (keyway) cutter in the TiN coated line. It plunges straight down without a pilot hole; for ordinary slotting 6272P 2GE is enough - this one is ground to keyway tolerances.

Specifications (46 items)

Dia. Neck dia. Flute length Usable length Overall length Shank dia.
3~4   6~7   50~60 6~8
Expand this group (6 specs)
Part No. Dia. Flute length Overall length Shank dia. Flutes
AVTNAGHKEY3 3 6 50 6 2
AVTNAGKKEY3 3 6 50 6 2
AVTNAGLKEY3 3 6 50 6 2
AVTNAGHKEY4 4 7 60 8 2
AVTNAGKKEY4 4 7 60 8 2
AVTNAGLKEY4 4 7 60 8 2
5~9   8~12   60~70 8~12
Expand this group (14 specs)
Part No. Dia. Flute length Overall length Shank dia. Flutes
AVTNAGHKEY5 5 8 60 8 2
AVTNAGKKEY5 5 8 60 8 2
AVTNAGLKEY5 5 8 60 8 2
AVTNAGHKEY6 6 10 60 8 2
AVTNAGKKEY6 6 10 60 8 2
AVTNAGLKEY6 6 10 60 8 2
AVTNAGHKEY7 7 10 60 10 2
AVTNAGKKEY7 7 10 60 10 2
AVTNAGLKEY7 7 10 60 10 2
AVTNAGHKEY8 8 12 60 10 2
AVTNAGKKEY8 8 12 60 10 2
AVTNAGLKEY8 8 12 60 10 2
AVTNAGHKEY9 9 12 70 12 2
AVTNAGKKEY9 9 12 70 12 2
10~14   14~16   70~80 12~16
Expand this group (14 specs)
Part No. Dia. Flute length Overall length Shank dia. Flutes
AVTNAGHKEY10 10 14 70 12 2
AVTNAGKKEY10 10 14 70 12 2
AVTNAGLKEY10 10 14 70 12 2
AVTNAGHKEY11 11 16 75 12 2
AVTNAGKKEY11 11 16 75 12 2
AVTNAGLKEY11 11 16 75 12 2
AVTNAGHKEY12 12 16 75 12 2
AVTNAGKKEY12 12 16 75 12 2
AVTNAGLKEY12 12 16 75 12 2
AVTNAGHKEY13 13 16 80 16 2
AVTNAGKKEY13 13 16 80 16 2
AVTNAGHKEY14 14 16 80 16 2
AVTNAGKKEY14 14 16 80 16 2
AVTNAGLKEY14 14 16 80 16 2
15~20   16~20   80~85 16~20
Expand this group (12 specs)
Part No. Dia. Flute length Overall length Shank dia. Flutes
AVTNAGHKEY15 15 16 80 16 2
AVTNAGKKEY15 15 16 80 16 2
AVTNAGLKEY15 15 16 80 16 2
AVTNAGHKEY16 16 18 80 16 2
AVTNAGKKEY16 16 18 80 16 2
AVTNAGLKEY16 16 18 80 16 2
AVTNAGHKEY18 18 18 85 20 2
AVTNAGKKEY18 18 18 85 20 2
AVTNAGLKEY18 18 18 85 20 2
AVTNAGHKEY20 20 20 85 20 2
AVTNAGKKEY20 20 20 85 20 2
AVTNAGLKEY20 20 20 85 20 2

Specification Range

Diameter 3~20mm
Flute length 6~20mm
Overall length 50~85mm
Shank diameter 6~20mm

Product Description

NACHI 6244P is the 2-flute keyseat (keyway) cutter in the TiN coated line. It plunges straight down without a pilot hole; for ordinary slotting 6272P 2GE is enough - this one is ground to keyway tolerances. It is made from cobalt high speed steel (HSS-CO) with NACHI's G coating, a TiN-based general-purpose layer with excellent adhesion to HSS. Sizes cover diameter 3~20mm, flute length 6~20mm, overall length 50~85mm, shank diameter 6~20mm, 2 flutes, 46 in total, made in Japan. H, K and L end-face types are all grouped under this product; choose by keyway specification. It suits carbon and alloy steel, stainless steel, cast iron with workpiece hardness up to HRC35. Typical uses: shaft keyways, keyseat milling, and closed slots that require vertical plunging. The family also includes 6272P 2GE for ordinary slotting (flute length 2~70mm, diameters to 50mm); this one is ground to keyway dimensions and tolerances and the two are not interchangeable. Can it plunge straight down? Yes - the end teeth cut on plunging, so no pilot hole is needed; diameter 3~20mm, with H, K and L end-face types included.

Workpiece Materials & Hardness

  • Steel (P)
  • Stainless steel (M)
  • Cast iron (K)

Max. workpiece hardness HRC35

Tags

  • Keyseat Cutter

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