20-piece miniature drill set in plastic dispenser with one each of high speed twist drills in wire gauge #61 - #80. Drill soft metals, wood, plastics and acrylics for jewelery, bead making, model making RC/plane/boat/train.

Any of these twist drill sizes can be used in the following Zona hand drills:

• 37-140 Swivel Head Pin Vise
• 37-145 Double Ended Pin Vise
• #61-#78 fit Zona Tool Holders: 37-120 and 37-130
• #70-#80 fit Zona 37-160 Spiral Hand Drill
• #61-#68 fit Zona 37-170 Small Pin Vise

They may also be used with other hand drills that hold wire gauge twist drills or rotary tools such as Foredom, Dremel, etc. with micro chuck.