Northwest Guitars necks are made from hand selected, A grade North American Maple to ensure outstanding performance. Crafted for ultimate compatibility, our necks are prefect replacements for genuine Fender models, including MIA, MIM, MIJ & Squier. This makes our electric guitar necks great as an upgrade to your existing guitar, a replacement part, or as an addition to your latest brand new guitar build project To ensure easy installation and compatiblity we've made our Jazz Bass necks with a 63.4mm wide flat heel, so you'll be sure of a nug fit in the neck pocket of your prized Bass! We've installed pre-slotted, flat-bottom bone nuts as standard, so great tone is assured (we dont glue these in so they're easy to pop out and shape should you feel the need). Our headstock shapes are reminiscent of classic guitar models, but are original to NWG. The Northwest Guitars replacement Jaz Bass neck will give you the same performance and playability of the branded equivalent, at a fraction of the cost. Check out the spcecificatios tab above this description for a full list of the individual specifications for this neck About us We've been making guitar necks for many years now, and our Jaz Bass neck is the go to for professional luthiers and hobbyist builders alike. Because they are manufactured in our own factory, we are able to keep costs relatively low, whilst still ensuring a top quality product. Everything is made by hand, offsetting the need for expensive CNC machinery, allowing us to pass on the saving to our customers. Please Note: We are unable to pre-drill the mounting holes into the back of the neck for you. This is because we cannot guarantee that the holes we drill will be a 100% match with those on your guitar body. Drilling holes for guitar necks is quite simple to do, and you can find an easy to follow tutorial here.