Otto Frei–BORE Jewelers Drill Bit Basic Kit with 150 HSS Twist Drills Sizes #51–#80 Ohaus Recommended for prongs up to

Recommended for prongs up to 1

761 Busch Knife Edge Bur 2

The UT 50 and UT 75 are listed as optional accessories and are not included with this vise

These jaw clamps require a GRS MicroBlock fitted with either the Basic JURA Attachment Set or the Complete JURA Attachment Set to function

use suitable high-speed steel

Otto Frei–BORE Jewelers Drill Bit Basic Kit with 150 HSS Twist Drills Sizes #51–#80 Ohaus Recommended for prongs up toThe Otto FreiBORE Jewelers Drill Bit Basic Kit combines the precision of HSS twist drills with the smart organization of the BORE drill holder by Nashef Designs. This complete master kit includes 150 HSS twist drills in sizes #51 through #80, neatly arranged in a 3D printed organizer with labeled compartments and a clear viewing window. Compact and thoughtfully engineered, it keeps your most frequently used micro drill sizes visible, protected, and