10PC Quality Pull Stud / Retention Knob Fits on any HAAS CAT40 CNC V Mill

BRAND NEW

With Coolant Through Hole

Pass hardness and anti crack test

Can be used on both spindle coolant through and non-coolant through HAAS CAT40 V mill

Fits on any HAAS V mill, like VF, mini mill, EC, ES, etc.

We use Quality Alloy Steel that is better than 8620 in terms of strength and flexibility. 

8620 is for medium-strength applications and less expensive, we'll beat that on  both strength and flexibility

Strength comes from steel itself, and flexibility is from case hardened

Case hardening Comes with a cost. I saw few sellers copy paste my description to their listings, then add or reduce few words, so seems like they write their own. Be careful. If they told you it's case hardened, but the price is a buck or $2 a piece, I don't think that's true. Keep in mind, case hardening comes with a cost, and the cost could be more than material itself.

we don't over describe all our items

All black oxide . Improves durability. Extends part life. Reduces distortion from heat treat

Professional heat treated

Bad nor non heat treat will shorten and weaken the life and strength of pull stud

5/8-11 Threads Fits On Any Name Brand CAT40 Holders

Total is 10PC in the order

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