Diamond hollow drill 1/2″ H75 mm D 81mm to D 90mm
The Diamond Hollow Drill is a standard diamond bur 75mm high with 1/2″ thread. It is for normal use and has internal cooling. The base material is steel and the diamond coating is of sintered material. The drill must be sharpened before first use. It is made in Italy and the HS code for reference is 8207.
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