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CAT RETENTION KNOBS | RETENTION KNOBS
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Frequently Asked Questions
1. What is a CAT Retention Knob used for in CNC machines?
View options — A CAT Retention Knob, also called a pull stud, is installed on the end of a CAT tool holder and allows the CNC spindle’s drawbar to securely grip the tool holder during machining. It plays a crucial role in tool retention and safety. You can view options at pactoolsusa.com.
2. Are CAT Retention Knobs compatible with all CAT tool holders?
Explore size compatibility — Retention knobs are available in different styles (e.g., CAT40, CAT50) and thread types to match specific tool holder standards. It’s important to select the correct knob to ensure a secure fit. Explore size compatibility at pactoolsusa.com.
3. What materials are CAT Retention Knobs made from?
Learn about material specs — Most CAT Retention Knobs are manufactured from alloy steel that is heat-treated and black oxide coated to resist wear, fatigue, and corrosion in high-speed CNC environments. Learn about material specs at pactoolsusa.com.
4. Can incorrect retention knobs damage the spindle or tool holder?
Shop OEM-fit knobs — Yes, using the wrong size or low-quality retention knob can cause improper engagement, tool slippage, or even spindle damage. Always use high-quality knobs that match OEM specifications — like those offered at pactoolsusa.com.
5. What maintenance is required for CAT Retention Knobs?
Get replacement parts — Regularly inspect the retention knob for signs of wear, cracking, or thread damage. Replacing worn knobs in time helps maintain spindle health and cutting precision. For replacement parts, visit pactoolsusa.com.
Quick Link
- Tool Holders
- ER Collet Holder
- ER Collet Holders-CAT Taper
- ER Collet Holders-CAT(DCAT) Dual-contact
- ER Collet Holders-BT Taper
- ER Collet Holders-BT(DBT) Dual-contact
- ER Collet Holders-HSK Taper
- ER Collet Holder - HSK Coolant Tube
- End Mill Holders
- End Mill Holders - CAT Taper
- End Mill Holders-CAT(DCAT)Dual-contact
- End Mill Holders-BT Taper
- End Mill Holder-BT(DBT)Dual-contact
- End Mill Holder-HSK Taper
- End Mill Holders-Set Screw And HSK Coolant Tube
- Shrink Fit Holders
- Shrink Fit Holder-CAT Taper
- Shrink Fit Holder-CAT(DCAT)Dual-contact
- Shrink Fit Holder - BT Taper
- Shrink Fit Holder - HSK Taper
- Face Mill Holders
- Face Mill Holders-CAT Taper
- Face Mill Holders-CAT(DCAT)Dual-contact
- Face Mill Holders-BT Taper
- Face Mill Holders-BT(DBT)Dual-contact
- Face Mill Holders-HSK Taper
- Face Mill Holders-Lock Screw and HSK Coolant tube
- Hydraulic Holders
- Hydraulic Holders-CAT Taper
- Hydraulic Holders-BT Taper
- Hydraulic Holders-HSK Taper
- Power Milling Holders
- Power Milling Holders-CAT Taper
- Power Milling Holders-CAT(DCAT)Dual-contact
- Power Milling Holders-BT Taper
- Power Milling Holders-BT(DBT)Dual-contact
- Power Milling Holders-HSK Taper
- Quick Change Tapping Holders
- Quick Change Tapping Holders-CAT Taper
- Quick Change Tapping Holders-BT Holder
- Quick Change Tapping Holders-HSK Taper
- ER Straight Shank Holders
- ER Straight Shank Holders-Single Ended
- ER Straight Shank Holders-Double Ended
- Collets
- ER Collets
- ER Steel Sealed Collets
- ER External Coolan Collet(Jet Spray)
- ER Tap Collets
- ER Tap Steel Sealed Collets
- ER Floating Tap Collet
- DNA(Dead Nuts Accurate) Collets
- SK Collets
- DA Collets
- DA Sealed Collets
- TG Collets
- TG Sealed Collets
- TG Tap Collets
- OZ(EOC) Collets
- Straight Collets for Milling Chuks
- Quick Change Tapping Adapters(Collets)
- R8 Collets
- 5C Collets
- 16C Collets
- 3J Collets
- Tool Holders Bushings
- Type-C Bushings
- Type-CS Bushings
- Type-Z Bushings
- Type-J Bushings
- Type-B Bushings
- Boring Bar Sleeves
- Retention Knobs
- CAT Retention Knobs
- BT Retention Knobs
- CNC Live/Dead Centers
- CNC Heavy Duty Live Centers
- Interchangeble Heavy Duty Centers
- CNC Small Casing Centers
- Slimline Medium Duty CNC Live Centers
- Dead Centers
- Other Accessories
- ER Nut
- ER Wrench
- Tool Locking Device
- Spindle Wiper
- HSK Coolant Tube
