Otto Frei-BORE Jeweler's Drill Bit Basic Kit With 150 HSS Twist Drills Sizes 51-80

The BORE HSS twist drill holder is another great organizer from Nashef Designs. 3D printed in the USA. It features 32 compartments labeled in HSS twist drills* bit sizes from 51-80 and millimeter size (0.34mm-1.7mm) with one unmarked for mix sizes and one closed. It is cleverly made with a plastic covered window to see in each compartment. The floor of each compartment is stepped up or down depending on the size of the drill so you can see the contents.

*HSS Twist Drills shanks are the same diameter from tip to shank and are shorter in length as diameters gets smaller.

This is the Otto Frei-Bore Jewelers Drill Bit Master Kit with 5 each of 30 different sizes of HSS Twist Drills from size #51 (largest 1.7mm/0.0700") to #80 (smallest 0.34mm/0.0135").

Each kit contains an extra bonus-One tube of Stay Sharp bur lubricant, the best selling cutting lubricant in the jewelry industry!

Made from 3D printed Plastic by Nashef Designs
Measures: 2-1/2 tall x 3-3/4" diameter