Product Description
The Innovative Span Gauge with 2‑1/8" Stud is a precision tool for measuring bowling ball spans on bowling balls with large and deep holes. Manufactured at Innovative Bowling’s Pennsylvania factory, this span gauge uses a scale graduated to 1/16", allowing drillers to read thumb‑to‑finger spans in fine increments when fitting or duplicating grips.
The 2‑1/8" stud is designed to seat into thumbholes, anchoring the gauge securely to the ball while it follows the curvature of the sphere. This larger stud footprint provides maximum stability on measuring balls or balls where you are drilling the thumbhole first, making it easier to align the gauge with the grip centerline and mark or verify spans with minimal movement.
Used alongside automatic span gauges, pitch gauges, and other layout tools, the Innovative Span Gauge with 2‑1/8" Stud helps pro shop operators deliver precise fits, confirm span changes after plug work, and replicate existing spans across an arsenal. Together with the 1" and 1‑1/2" stud models and Innovative’s automatic span gauge line, it forms part of a complete measurement system for modern drilling and fitting workflows.
Innovative Span Gauge with 2‑1/8" Stud FAQ
What does the Innovative Span Gauge with 2‑1/8" Stud measure?
This gauge measures bowling ball span—the distance between thumb and finger holes—using a scale graduated to 1/16". It’s intended for measuring the span on the bowling ball from the thumb to the finger holes.
Why choose the 2‑1/8" stud version?
The 2‑1/8" stud offers the largest anchor footprint among Innovative’s span gauges, providing maximum stability when seated in a thumb ho9le. This is valuable on measuring balls where you want the gauge to stay firmly in place while repeatedly measuring and marking different spans.
How is the 2‑1/8" stud used on the ball?
The stud fits into the thumb hole of a drilled bowling ball. Once anchored, the gauge follows the ball’s curvature, allowing the driller to align it with the grip centerline and read span measurements directly from the graduated scale.
Why is precise span measurement important?
Accurate span measurement affects grip pressure, finger and thumb comfort, and release timing. Precise spans help ensure the bowler’s hand sits naturally in the ball, reducing strain and promoting consistent, repeatable shots.
Who typically uses the 2‑1/8" stud span gauge?
Pro shop operators and advanced drillers use larger‑stud span gauges when working with dedicated measuring balls or when measuring the span from the thumb hole to the fingers on a ball. It’s especially useful when teaching span concepts or analyzing spans across multiple balls for high‑level bowlers.
How does this span gauge fit into a complete fitting toolkit?
The 2‑1/8" stud span gauge works alongside 1" and 1‑1/2" stud gauges, automatic span gauges, pitch gauges, and grip charts. Having different stud length gives drillers flexible options for measuring and drilling spans while maintaining high accuracy and repeatability.
