Pro Series by HHIP 3900-0690 Collet Chuck Nut, Um-Type Er25, 18000 RPM M32 x 1.50

Brand:HHIP

3/5

68.89

Um-Type Er-25 Collect Chuck Nut - Balanced To 18,000 Rpm - Tolerance Is .0003" Maximum - Material Is 42 Crmo - Hardness Is Hrc 50-52 - Thread Tolerance Class Is 4H-Class - Thread Is M32 X 1.5 - D Is 42 Mm. - L Is 20 Mm.

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Hardness is HRC 50-52. Material is 42 CrMo. Thread Tolerance Class: 4H-Class. Tolerance is .0003" Maximum. Balanced to 18,000 RPM.
Brand HHIP
Item model number 3900-0690
Item Weight 0.2 Pounds
Manufacturer HHIP
Material 42CrMo
Product Dimensions 3 x 1 x 6 inches; 3.2 Ounces

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Scritto da: H. Edmondson
Almost impossible to insert and remove collets.
My fingers and thumbs are sore from fighting with this collet nut when installing and removing collets. It's also frustrating to thread it onto my lathe spindle, it just refuses to engage with the threads until you hit the one tiny spot where it locks in, never seen anything like that. Maybe I just got a bad one, either way, it's being returned.
Scritto da: Bentley
Balanced!
The key to a quality cut especially using a small cutter on a CNC machine is run out. I use a lot of very tiny v bits on my CNC machine and I need accuracy. This fits the bill. Also as soon as I switched the original collet nut out to this one my spindle has zero vibration. I am very happy that I found these. Highly recommended!

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