Busch Fig. 105-040 Allport Burs 4.00mm Engraving & Stonesetting Maximum 18 gauge / 1

Maximum 18 gauge / 1

Properly hardened heat-treated steel for durability and workability

The result is a clean

and one 3-Square File — all in a single cut

and Angle Stop—are available separately

Busch Fig. 105-040 Allport Burs 4.00mm Engraving & Stonesetting Maximum 18 gauge / 1The Busch Fig. 105 040 Allport Bur is a precision steel bur designed for professional jewelers and metalsmiths requiring consistent, reliable cutting performance. With a 4. 00mm cutting diameter and a 64. 5mm shank length, this round allport style bur is well suited for detailed metalwork where accuracy and control are essential. Busch burs are a trusted standard in professional bench work, and this figure delivers the quality expected from that