From Fender:
Crafted at our Ensenada, Mexico manufacturing facility, this genuine vintage-style Fender® Jazzmaster® neck features a comfortable “C”-shaped profile and 9.5″-radius pau ferro fingerboard with 21 medium jumbo frets.
The synthetic bone nut is pre-slotted with “pilot” grooves for accurate spacing when filing the final string slots, and a gloss urethane finish offers an incredibly smooth feel. This replacement neck is the perfect way to give your Jazzmaster® a classic, vintage-style feel.
Fingerboard Material: Pau Ferro
Neck Material: Maple
Nut Material: Synthetic Bone
Position Inlays: White Dots
Neck Finish: Gloss Urethane
Truss Rod Nut: Vintage-Style Slotted
Truss Rod: Vintage-Style Heel Adjust
Fingerboard Radius: 9.5″ (241 mm)
Scale Length: 25.5″ (648 mm)
Nut Width: 1.650″ (42 mm)
Number of Frets: 21
Fret Size: Medium Jumbo
Headstock Thickness: .540″ (13.71 mm)
Neck Thickness: 1st Fret – .820″ (20.82 mm), 12th Fret – .900″ (22.86 mm)
Peg Hole Diameter: .358” (9.09 mm)