Plus (+) Spare Parts -- an innovative approach to deep hole drilling!

One drill head can drill multiple size holes - up to 0.197" larger than the smallest hole you need to drill. Refer to the tables below to determine Plus (+) or enlargement potential per the drill head's outer cartridge (i.e. a drill head using an OZ402-32 outer cartridge can be enlarged up to 0.157", while drill heads using OZ402-43 can be enlarged up to 0.197".)

Extremely economical - considerable cost savings by purchasing only 1 drill head and Plus (+) Spare Parts.

Exchange only the outer cartridge and guide pads - resulting in a diameter increase of up to 0.197" depending on the tool size.

Ordering Example:
OZ402-04+1mm 3pcs.