TECHNIKS Retention Knob: Coolant Through, BT40 Taper, 45°
SKU 3G-OTH-273001
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the TECHNIKS Retention Knob 17818 used for?
The TECHNIKS Retention Knob 17818 is used to secure BT40 taper tool holders in CNC machining spindles while allowing coolant to flow through the tool. It is essential for high-pressure coolant applications in milling and turning centers, improving chip evacuation and tool life.
What are the specifications of the TECHNIKS Retention Knob 17818?
The TECHNIKS Retention Knob 17818 has a BT40 taper, a 45° angle, and a 15 mm diameter. It is designed for coolant-through operation. The manufacturer part number is 17818, and it is made by TECHNIKS. This knob ensures reliable retention and coolant delivery in CNC machines.
Where to buy the TECHNIKS Retention Knob 17818 worldwide?
You can source the TECHNIKS Retention Knob 17818 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we supply genuine TECHNIKS components for CNC applications.
How to install the TECHNIKS Retention Knob 17818?
To install the TECHNIKS Retention Knob 17818, first clean the spindle and knob threads. Apply a light lubricant to the threads, then hand-tighten the knob into the BT40 tool holder. Use a torque wrench to tighten to the manufacturer's recommended specification. Always verify coolant flow before operation.
Used in
Common applications for TECHNIKSTECHNIKS Products
3G Electric supplies TECHNIKS coolant-through bt retention knobs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












