Spearhead High Speed Steel Ball Bur Master Kit of 33 Pieces

Ball burs cut round seats and hollows in metal, and a master set puts every graduated size within reach at the bench.

Important Notice: This set will ship incomplete. Due to ongoing supply constraints, Spearhead has been unable to fulfill all sizes in this kit as ordered. Otto Frei will contact you with the exact burs in stock, the sizes unavailable, and an updated reduced kit price at the time of your order. We are not back-ordering missing sizes, as restocking timelines are unknown and inventory returns randomly. For reference, as of 7/29/2026, 23 of the 33 sizes were available; actual stock will vary on your order date.

The Spearhead High Speed Steel (HSS) Ball Bur Master Kit brings together individually sized round burs in one set, covering a wide metric size range from 0.90 mm through 11.00 mm. Each bur is hand cut by expert craftsmen in the USA, a level of craftsmanship that sets Spearhead HSS burs apart from imported Tungsten Vanadium Carbon Steel alternatives. The size is stamped directly on every 3/32" shank, making identification fast and reliable at the bench.

High Speed Steel is a harder material than Tungsten Vanadium Carbon Steel, which means these burs stay sharper longer and deliver an extended service life under demanding professional use. Quality jewelers who rely on precision and longevity favor HSS burs for exactly this reason.

The set is supplied in a 36-hole wood bur box sized for 3/32" shanks, measuring 5" wide by 3" deep by 2-5/8" high, so each size has its own seat.

Features

• High Speed Steel (HSS) construction, harder and longer-lasting than Tungsten Vanadium Carbon Steel burs
• Hand cut by expert craftsmen in the USA
• Size stamped on each 3/32" shank for quick bench identification
• 33-piece set spanning 0.90 mm – 11.00 mm in graduated metric sizes
• Preferred by quality jewelers for precision and extended service life
• Supplied in a 36-hole wood bur box for 3/32" shanks

Notes

Stock availability varies across sizes. Otto Frei will contact you after ordering with confirmed available sizes, any sizes that cannot be supplied, and an updated kit price reflecting what is in stock. No backorders are accepted for unavailable sizes due to indeterminate restock lead times.