EZO HSA750 Hipshot A-Style Bridge Layout & Drill Guide

Hipshot A-Style .750 Bass Bridge Layout & Drill Guide

Position, align, and drill a 4-string Hipshot A-Style .750" bass bridge with one reusable shop guide.

The EZO HSA750 Bridge Layout & Drill Guide is built for custom bass builders who want a faster, more repeatable way to establish bridge position before making permanent holes. Designed specifically around the 4-string Hipshot A-Style bridge with .750" string spacing, it combines centerline alignment, an intonation reference, mounting-hole locations, and string-through locations in a single tool.

Instead of measuring every bridge feature independently—or using your finished bridge as a drilling template—the HSA750 lets you work from the instrument's actual geometry: neck alignment, scale length, string path, and saddle travel.

Why It Helps

• Longitudinal centerline helps align the bridge with the neck and intended string path
• Intonation midpoint reference represents the center of the bridge's available saddle-adjustment range
• Bridge mounting-hole locations transfer the mounting pattern directly to the body
• String-through locations simplify string-through-body layouts
• Reduces repetitive measuring and layout work
• Keeps the actual bridge safely off the workpiece while marking and drilling
• Reusable across compatible builds

Designed for Scratch Builds

On a scratch-built bass there are no factory holes to copy. The HSA750 gives you physical references tied to the geometry that actually matters, making it especially useful for custom instruments, new body builds, and bridge installations where accurate placement has to be established from zero.

Compatibility

Bridge: Hipshot A-Style Bass Bridge
Configuration: 4-string
String spacing: .750"

This guide is purpose-built for that configuration and should not be assumed compatible with other Hipshot models, different string spacings, 5-string bridges, or visually similar third-party hardware.

Always compare your actual bridge to the guide and verify scale length, neck alignment, centerline, saddle travel, and hole locations before drilling. Hardware specifications can change over time.

What's Included

• 1× EZO HSA750 Bridge Layout & Drill Guide
• Quick-start installation guide
• Bridge positioning and alignment instructions
• EZO setup and best-practices documentation

Bridge, drill bits, clamps, and instrument hardware are not included.

Designed and manufactured by EZO Guitars in Vermont.