Busch 447AU Pave Cut Carbide Twist Drill Assortment of 9 On 3/32" Shanks 0.80mm-1.60mm

The Busch 447AU Pavé Cut Carbide Twist Drill Assortment gives jewelers a versatile, time-saving set engineered specifically for pavé setting work. Each bur in this 9-piece collection combines a twist drill and a round bur into a single tool — pre-drilling and seat shaping happen in one pass, eliminating the need to switch tools mid-process. The result is improved precision, consistent stone seats, and a faster overall workflow.

All nine burs are manufactured from hot isostatically compressed finest-grain carbide, delivering exceptional hardness, wear resistance, and edge retention even under demanding use. Each bur is mounted on a 3/32" shank, compatible with standard flex shaft handpieces and rotary tools. The assortment spans 0.80mm through 1.60mm in 0.10mm increments, covering the most common pavé drilling requirements in a single purchase.

Features

• 2-in-1 design: combines twist drill and round bur functions in a single tool
• Pre-drilling and seat shaping completed in one step for greater efficiency
• Manufactured from hot isostatically compressed finest-grain carbide
• Engineered specifically for pavé setting applications
• Consistent 0.10mm incremental sizing for precise stone-seat matching
• Mounted on standard 3/32" shanks for broad handpiece compatibility
• 9-piece assortment covers 0.80mm–1.60mm range

Specifications

What's Included

One each of the following 447AU Pavé Cut Carbide Twist Drills:

• BAU118.448 — 0.80mm
• BAU118.449 — 0.90mm
• BAU118.450 — 1.00mm
• BAU118.451 — 1.10mm
• BAU118.452 — 1.20mm
• BAU118.453 — 1.30mm
• BAU118.454 — 1.40mm
• BAU118.455 — 1.50mm
• BAU118.456 — 1.60mm

Notes

These burs are also available for individual purchase. See part number BAU118.447AU for single-size ordering.

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Cancer and Reproductive Harm. www.P65warnings.ca.gov.