I got a set set of plans from mimf and the width of the nut is 1-3/4", the pocket is 4-3/16" long, 2-1/2" wide, and 11-16" deep. DATE SERVICE DIAGRAMS '60s Jazz Bass® 013-1800: 06/28/01: Download: American Deluxe Jazz Bass® LH: 019-4490: 01/02/05: Download: American Deluxe Jazz Bass® IME, the average weight for a jazz bass is 9 to 9 1/2lbs. light ones are from 8 to 8 1/2 and hevy ones are 10 and up to 12 1/2 lbs. Hey, I'm in the process of building a template for a fender jazz bass and I've run into some issues. Jazz Bass One of the most loved basses in the world the Fender Jazz Bass is known for its incredible versatility and thick, full tone.Released in 1960 the Fender Jazz Bass is one of the longest running electric bass guitars in the world. MODEL PART NO. This is quite evident when you browse through Sweetwater’s Guitar Gallery bass categories.You’ll lose track trying to count the instruments that owe their body shape, pickup configuration, headstock shape, or other design element to one of these two giants of the bass world. Fender’s Precision and Jazz Basses rule the bass universe. REV. The Jazz Bass offered another take on the P Bass, with a sleek offset waist, just like the Jazzmaster, that moved the body away from the player’s picking arm. Also, the length from the bridge screws -> end of neck pocket is 15-1/4". dinodino likes this. Feb 15, 2011 #4