Today we installed a CSSV (Continuous Spindle Speed Variation) upgrade on our @machinesserdi3318 Serdi 4.5! Thank you to Serdi for building an amazing machine and supporting our content! If you haven't already, subscribe to their channel and follow their social medias! https://www.youtube.com/channel/UCB25TFLinRAyh1PHIkUVFYQ https://www.facebook.com/serdi.machines https://www.instagram.com/serdimachines/ The CSSV upgrade adds another tool in the toolbox to help prevent chatter when machining valve seats. Instagram: @jamsionline Facebook: JAMSI Online TikTok: @jamsionline Websites: https://www.jamsionline.com https://www.jimsmachineinc.com For business inquires: Contact [email protected] #chatter #automotivemachining #jimsautomotivemachineshop