ER40 Coolant Collets – RD40 Sealed Collets (EK Collet) Lexis ER40 Sealed Collets are manufacturing at par with DIN 6499 Standard Table. Sealed collets also known as Coolant Collets having two different models Internal coolant Collet and External Coolant Collet. For more details please visit www.lexisindia.com. ER Coolant Collet external flow type are also extremely beneficial for through holes with oil hole cutting tools, as this will ensure that the cutting is properly cooled completely throughout the entire cycle. In many applications as the cutting tool is passing through or breaking through the work piece the coolant may be just passing through the hole, with an external flow sealed collet one can be assured the complete cutting edge and lands of the drill are cooled throughout the complete cycle Lexis ER40 Collet RD40 Collet ER40 Collet ER Collets ER 40 Collets ER40 Coolant Collet ER40 Sealed Collet ER40 IK Coolant Collet ER40 EK Coolant Collet