These are what should be on every Telecaster style guitar, and should have been a stock part on any high end Telecaster. After comparing it to the stock jack it makes one wonder, "What the heck were they thinking when they came up with the stock part". This is a vast improvement, and a must for anyone who gigs and puts in long hours playing a Tele. Working on professional musician's instruments I see a lot of cracked twisted and broken parts among the sweat and schmutz deposited on the guitars. These hold up extremely well to all the abuse put on an instrument by a performing player. Definitely a well engineered and thought out part. THANK YOU ALL PARTS! This is one up grade that is a must.