This "64" length is based on the arm from a 1964 Strat.

Callaham's arms are made of stainless steel, so there's no plating to worry about, and the arm will never corrode. Also, if you bend the arm to suit your playing style, you don't have to worry about plating flake off like you do with a plated arm. This arm is fully threaded, so it will work in almost any block that uses a 10-32 UNF thread (this includes all vintage & American Standard Fender blocks). It can be used in Callaham's enhanced vintage blocks, though the Callaham virtual pop-in arms are a better choice for these blocks.

• Country of Manufacture: USA
• Length: 5.25" (133.4 mm)
• Thread: 10-32 UNF
• Fits virtually all trem blocks using an arm with a 10-32 UNF thread; may be used with Callaham's Enhanced Vintage Blocks, though Callaham's Virtual Pop-In Arm is preferred
• Tip color: parchment (we stock Fender tips in other colors at extra cost)