End Mill Set, 20 pieces 2 & 4 Flute, TiN coated HSS

20 piece TiN coated HSS end mill set
Includes both 2 flute and 4 flute end mills
Center cutting end mills
3/16" to 3/4" by 16ths

Part Number: 1244
Weight: 4.68 lb

Price: $159.95

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The LittleMachineShop 1244 20 piece TiN coated HSS end mill set includes both 2 & 4 flute end mills. The 3/16" through 7/16" end mills have a 3/8" shank. The 1/2" and 9/16" end mills have a 1/2" shank. The 5/8" and 11/16" end mills have a 5/8" shank. The 3/4" end mill has a 3/4" shank. The HSS end mill set comes in a fitted case.

Chris' Tips

Chris' Tips
Conventional wisdom is that 2-flute end mills are used on aluminum, while 4-flute end mills are used on steel and brass.

2-flute end mills are used on aluminum because aluminum is easy to machine and you can take big cuts. Two-flute end mills provide a lot of room between the flutes for the big chips produced when making heavy cuts.

4-flute end mills can produce a slightly better finish at the same cutting speeds because there are twice as many cutting edges, each taking off half as much material. But again, if you are not trying to maximize production, you can simply slow the feed rate with a 2-flute end mill for the same effect.

End mills are also classed as "center cutting" or "non center cutting". With a center cutting end mill, you can plunge the end mill into the work as you would a drill. This is important if you are cutting a slot that does not extend to the edge of the part. Center cutting end mills are easy to identify. If the flutes meet in the middle of the end of the end mill, it is a center cutting end mill. In some cases, one of the flutes will be longer, reaching right to the center. If the flutes stop short of the center, leaving a space with no flutes in the center, it is a non-center cutting end mill.

Specifications

Specifications
Cut Type	Center Cutting
Cutting Direction	Right
End Cut Type	Square
Finish Type	TiN
Material Type	High Speed Steel
3/8" Shank Diameter	Sizes: 3/16" - 7/16"
1/2" Shank Diameter	Sizes: 1/2" and 9/16"
5/8" Shank Diameter	Sizes: 5/8" and 11/16"
3/4" Shank Diameter	Sizes: 3/4"
Shank Material Type	High Speed Steel
Shank Type	Straight

Photos

"End Mill Set

Compatibility

Compatibility

This product works with these LittleMachineShop.com products:

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End Mill Set, 20 pieces 2 & 4 Flute, TiN coated HSS