AD-98 Carbide 4-Flute "X" Length End Mill
Rated 3.5/5 based on 11 customer reviews

AD-98 Carbide 4-Flute "X" Length End Mill

Availability: In Stock
Product SKU: BH4X125
$25.00

AD-98 is a PVD, Physical Vapor Deposition, amorphous diamond coating, the chief characteristic of which is its abrasion resistance. This quality adds many hours to the cutting time achieved when machining graphite, green ceramics, and other abrasive non-ferrous materials, which means machining with this coating is done at a very low cost as compared to other diamond coating products. The quality and abrasion resistance of PVD also provides finer finishes, longer tool life, and lights out machining without the cost of CVD, Chemical Vapor Deposition, coatings.

AD-98 is a micron thick diamond film that does not change the carbide end mill size, shape or tolerance. It has the added advantage of a "no build-up edge," which provides a sharp cutting edge, resulting in a better surface finish on electrodes. AD-98 end mills have become the leading cutters for EDM electrode milling.

The benefits of using AD-98 Abrasion Resistant PVD Diamond Coated Tools:

  • Faster Cutting Speeds and Feeds
  • Longer Tool Life = Less Downtime = Less Cost $$
  • Better Surface Finishes
  • Small Tool Diameters on 1/8" Ø Shank
  • Extended Flute Lengths
  • Tolerances: +.0000" / -.0005


AD98 Carbide 4-Flute Extended Length End Mill. Select your desired shape, cutting diameter, flute length, and shank.


Shape SKU Cutter Ø Flute Length Shank Ø Overall Length
Ball End BH4X125 .125" .625" .125" 2.000"
Ball End BH4X156 .156" .750" .187" 2.125"
Ball End BH4X187 .187" .750" .187" 2.500"
Ball End BH4X250 .250" 1.125" .250" 3.000"
Ball End BH4SX312 .312" 1.125" .312" 3.000"
Ball End BH4X375 .375" 1.125" .375" 3.000"
Ball End BH4X500 .500" 2.000" .500" 4.000"
Ball End BH4X625 .625" 2.250" .625" 5.000"
Ball End BH4X750 .750" 2.250" .750" 5.000"
Ball End BH4X1000 1.000" 2.250" 1.000" 5.000"
.015" Radius FH4S125R1 .125" .375" .125" 1.500"
.015" Radius FH4S187R1 .187" .625" .187" 2.000"
.015" Radius FH4S250R1 .250" .750" .250" 2.500"
.015" Radius FH4S375R1 .375" 1.000" .375" 2.500"
.015" Radius FH4S500R1 .500" 1.000" .500" 3.000"
.031" Radius FH4S125R2 .125" .375" .125" 1.500"
.031" Radius FH4S187R2 .187" .625" .187" 2.000"
.031" Radius FH4S250R2 .250" .750" .250" 2.500"
.031" Radius FH4S375R2 .375" 1.000" .375" 2.500"
.031" Radius FH4S500R2 .500" 1.000" .500" 3.000"
.062" Radius FH4S125R4 .125" .375" .125" 1.500"
.062" Radius FH4S187R4 .187" .625" .187" 2.000"
.062" Radius FH4S250R4 .250" .750" .250" 2.500"
.062" Radius FH4S375R4 .375" 1.000" .375" 2.500"
.062" Radius FH4S500R4 .500" 1.000" .500" 3.000"
Flat End FH4X125 .125" .625" .125" 2.000"
Flat End FH4X156 .156" .750" .187" 2.125"
Flat End FH4X187 .187" .750" .187" 2.500"
Flat End FH4X250 .250" 1.125" .250" 3.000"
Flat End FH4X312 .312" 1.125" .312" 3.000"
Flat End FH4X375 .375" 1.125" .375" 3.000"
Flat End FH4X500 .500" 2.000" .500" 4.000"
Flat End FH4X625 .625" 2.250" .625" 5.000"
Flat End FH4X750 .750" 2.250" .750" 5.000"
Flat End FH4X1000 1.000" 2.250" 1.000" 5.000"

AD-98 is a PVD, Physical Vapor Deposition, amorphous diamond coating, the chief characteristic of which is its abrasion resistance. This quality adds many hours to the cutting time achieved when machining graphite, green ceramics, and other abrasive non-ferrous materials, which means machining with this coating is done at a very low cost as compared to other diamond coating products. The quality and abrasion resistance of PVD also provides finer finishes, longer tool life, and lights out machining without the cost of CVD, Chemical Vapor Deposition, coatings.

AD-98 is a micron thick diamond film that does not change the carbide end mill size, shape or tolerance. It has the added advantage of a "no build-up edge," which provides a sharp cutting edge, resulting in a better surface finish on electrodes. AD-98 end mills have become the leading cutters for EDM electrode milling.

The benefits of using AD-98 Abrasion Resistant PVD Diamond Coated Tools:

  • Faster Cutting Speeds and Feeds
  • Longer Tool Life = Less Downtime = Less Cost $$
  • Better Surface Finishes
  • Small Tool Diameters on 1/8" Ø Shank
  • Extended Flute Lengths
  • Tolerances: +.0000" / -.0005


AD98 Carbide 4-Flute Extended Length End Mill. Select your desired shape, cutting diameter, flute length, and shank.


Shape SKU Cutter Ø Flute Length Shank Ø Overall Length
Ball End BH4X125 .125" .625" .125" 2.000"
Ball End BH4X156 .156" .750" .187" 2.125"
Ball End BH4X187 .187" .750" .187" 2.500"
Ball End BH4X250 .250" 1.125" .250" 3.000"
Ball End BH4SX312 .312" 1.125" .312" 3.000"
Ball End BH4X375 .375" 1.125" .375" 3.000"
Ball End BH4X500 .500" 2.000" .500" 4.000"
Ball End BH4X625 .625" 2.250" .625" 5.000"
Ball End BH4X750 .750" 2.250" .750" 5.000"
Ball End BH4X1000 1.000" 2.250" 1.000" 5.000"
.015" Radius FH4S125R1 .125" .375" .125" 1.500"
.015" Radius FH4S187R1 .187" .625" .187" 2.000"
.015" Radius FH4S250R1 .250" .750" .250" 2.500"
.015" Radius FH4S375R1 .375" 1.000" .375" 2.500"
.015" Radius FH4S500R1 .500" 1.000" .500" 3.000"
.031" Radius FH4S125R2 .125" .375" .125" 1.500"
.031" Radius FH4S187R2 .187" .625" .187" 2.000"
.031" Radius FH4S250R2 .250" .750" .250" 2.500"
.031" Radius FH4S375R2 .375" 1.000" .375" 2.500"
.031" Radius FH4S500R2 .500" 1.000" .500" 3.000"
.062" Radius FH4S125R4 .125" .375" .125" 1.500"
.062" Radius FH4S187R4 .187" .625" .187" 2.000"
.062" Radius FH4S250R4 .250" .750" .250" 2.500"
.062" Radius FH4S375R4 .375" 1.000" .375" 2.500"
.062" Radius FH4S500R4 .500" 1.000" .500" 3.000"
Flat End FH4X125 .125" .625" .125" 2.000"
Flat End FH4X156 .156" .750" .187" 2.125"
Flat End FH4X187 .187" .750" .187" 2.500"
Flat End FH4X250 .250" 1.125" .250" 3.000"
Flat End FH4X312 .312" 1.125" .312" 3.000"
Flat End FH4X375 .375" 1.125" .375" 3.000"
Flat End FH4X500 .500" 2.000" .500" 4.000"
Flat End FH4X625 .625" 2.250" .625" 5.000"
Flat End FH4X750 .750" 2.250" .750" 5.000"
Flat End FH4X1000 1.000" 2.250" 1.000" 5.000"