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Cost-Cutting Gundrills for Medical Device, Instrument Deep Hole Drilling

Star SU’s single-flute solid-carbide gundrills are engineered and manufactured to meet part print requirements when working with the complete range of titanium and stainless steel materials.

Posted: June 12, 2020

Star SU’s small-diameter solid-carbide gundrills for deep hole drilling cost-effectively machine challenging medical-grade materials. Tool life increased 100% in one instance and 143% in another.

Small-diameter solid-carbide pilot tools for medical device and instrument drilling are also available from Star SU.

Single-flute solid-carbide gundrills from Star SU LLC (Hoffman Estates, IL) are engineered and manufactured to meet part print requirements for medical devices and instruments made from the complete range of titanium and stainless steel materials.

The small-diameter gundrills provide excellent cost savings. “This was driven from tool life and throughput improvements,” says Round Tool Sales Manager Jamie Dunneback. “Several case studies resulted in doubling production capability.”

Titanium (6Al-4V) case study – tool life improvement from 700 parts to 1,700 parts (143% increase).
440 Stainless case study – tool life improvement from 110 parts to 220 parts (100% increase).

Optimization of the gundrill’s manufacturing process was key to the improvements. “We looked at everything, from selecting the appropriate grade of carbide, surface finish, edge prep, and coating – all of which are essential for success in the medical sector,” says Dunneback.