Universal Tuning Gauge

The Universal Tuning Gauge is for serious archers and bow technicians. It’s a multi-functional tool built for precision and versatility. Designed to measure string angles from 20° to 52°, it helps you select the right peep sight and achieve a perfect bow fit. Dual adjustable pointers allow accurate measurement of peep sight, nose button, or kisser button positions/heights, whether the bow is at rest or fully drawn. This is ideal for sight tape specs and overall reference points when switching between bows. An integrated 90° square makes it simple to set nock points and d-loops, as well as check brace height. The tool also offers precise nock height alignment directly related to the Berger hole, improving tuning accuracy. Each UTG includes a built-in 13/16" center shot reference, blade angle markings, cam lean, tiller, static timing checks, and precisely marked ruler measurements. This all-in-one gauge simplifies the most critical tuning steps. Whether you're in the shop or at the range, this tool delivers consistent, reliable results every time.

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Measures String Angles

Measures string angles from 20° to 52° for accurate peep sight selection and bow fit.

Dual Adjustable Pointers

Dual adjustable pointers help locate the peep, nose, and kisser button positions and heights, whether at rest or full draw.

Precise Nock Point Setup

Provides precise nock height alignment referencing both the Berger hole and the string.

Centershot

Built-in 13/16" center shot gauge allows for easy rest centering.

Measure Blade Angle

Blade angle measurement markings range from 0° to 90°.

Cam Lean

Check cam lean, tiller, static timing, and more.

90º Square

An integrated 90° square assists in setting nock points, D-loops, and checking brace height.

Laser-etched

Ruler markings along the body enable versatile, multi-purpose measuring tasks.

Why String Angle Matters

String angle plays a crucial role in how a bow fits, aims, and feels at full draw. String angle is determined by overall tip-to-tip bow length when at full draw, which can be affected by your draw length, brace height, and (the key) limb or cam geometry. All of which influence the peep angle needed, peep height, and anchor point placement. If your peep angle or height isn’t correct, your shots can feel awkward and inconsistent. Shorter axle-to-axle bows tend to have steeper string angles, which may require a higher peep position, while longer bows might need a lower one.

Modern bow designs have improved this balance. Axle-to-axle length alone no longer provides the whole picture. Measuring the actual string angle and confirming proper peep angle, placement, and height ensures a natural anchor, clear sight picture, and consistent accuracy for your specific setup.

Thanks to advances in bow technology, many archers who prefer longer axle-to-axle bows can now shoot shorter ones with the same comfort and stability at full draw.