Check the listing for details. USA 10Pcs CAT40 Pull Stud Retention Knob Coolant Thru for HAAS Mill CAT40 Holder. Color: Silver, Condition: New. Listed at 69.00 USD. Company AdvantagesTen-year pull stud/retention knob manufacturer with a market share of 3,000,000400,000 pieces in stock, complete models and specificationsAutomated mass production for fast deliveryHigh-quality steel guarantees strength and working lifeStrict inspection, elegant appearance, reliable packagingUS stock fast delivery, 5 days to your doorProduct FeaturesEach pull stud is tested thoroughly which ensures its qualityMade from fine alloy steel 20CrMnTi with treatment to HRC53-57Hard outside and soft inside, with higher wear resistance and better toughnessHigh quality black oxide ensures long pull stud life and a non-rusting surfacePrecision turning on all critical surfaceLarge selection for specific machine models, custom design acceptedPacking Details：10pcs BT-CAT40-45°U/T Pull Stud (Coolant Thru) + US Free ShippingNote: Carton box and plastic box packaging are shipped randomly, please order remarks for special requirements SFX is dedicated to the R&D of CNC tool holder pull studs, nuts, pull stud and nut wrench/spanner, tool holder locking device etc. The pull studs that we supply are BT series, CAT series, MAZAK series with complete specifications.Any questions, please contact us, thanks!!!