
YG-1
1/4in" 4-Flute Solid Carbide Square End Mill, Diamond - YG-1 99631
MFR# 99631Series EI107
$149.03List $187.81
Save 20%
Usually ships in 1-3 business days
Ship times are estimates. We confirm availability on every order and email you right away if anything changes.
⚡ Need it urgently? Confirm stock & ship time →
- Fast sourcing
- Regrinding available
- 20+ yrs expertise
Diameter1/4in
Flutes4
MaterialSolid Carbide
CoatingDiamond
Description
The YG-1 99631 is a 1/4in 4-flute Solid Carbide (Micrograin) square end mill with a Diamond finish for longer tool life. Suited for non-ferrous metal. 3/4in length of cut, 2-1/2in overall length. Series EI107.
Specifications
CentercuttingNo
ChipbreakerNo
Coating finishDiamond
Cutting directionRight Hand
End mill materialSolid Carbide
Extended reachNo
Flute directionRight Hand
Flute typeSpiral
Helix angle30
Length of cut in3/4in
Length of cut range0.7000 - 0.8000
Length typeRegular
Material gradeMicrograin
Mill diameter in1/4in
Mill diameter tolerance0.0000 to -0.0012 in
Number of flutes4
Overall length in2-1/2in
Primary workpiece materialNon-Ferrous Metal
Shank diameter in1/4in
Shank diameter tolerance+0.0000 to -0.0003 in
Shank typeStraight-Cylindrical
Variable helixNo
Variable indexNo
Can't find your exact tool?Send us a part number — we'll cross-reference it.
Dull tools?Regrinding extends tool life and saves cost.
Alternate & equivalent tools
Matched on diameter, flute count, and material. Need a specific brand or coating? Cross-reference this tool.




