Diamond coated, wire gauge twist drill set in plastic dispenser. These straight shank drills are made of high quality steel with diamond coating. Set contains one each of drills #61 - #80 (.025" - .053").

• Any of these twist drill sizes can be used in the following Zona hand drills: 37-140 Swivel Head Pin Vise and 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. Chart has wire gauge dimensions in inches and millimeters.