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and hoop construction
High-quality tool steel construction
The result is a more efficient finishing cycle with consistent
Two-piece body reconfigures in four positions with multiple screw holes to clear undersurface obstructions
Distinguishes diamonds from all known simulants except moissanite
Busch Fig 77 Tungsten Vanadium Twist Drill Kit of 15 On 3/32" Shanks-0.7mm-1.2mm 134.204HA and hoop constructionThis assortment of 15 genuine Busch Fig 77 tungsten vanadium steel twist drills includes multiple drills of the most popular sizes that jewelers use, spanning 0. 7mm to 1. 2mm. Busch Fig 77 twist drills are made to ultra high precision tolerances and mounted on 3 32" (2. 35mm) shanks for easy, secure drill changes in standard flex shaft handpieces and drill presses. This kit is part of the GIA Graduate Jeweler tool kit. Features Genuine Busch Fig 77
