PRODUCT COUNTERSINKS AND COUNTERBORES (GSR JERMAN)

COUNTERSINKS

Countersinks are used forsinking and deburring andhave three axial-radial reliefedground cutting edges.

COUNTERBORES

Couterbores for sinking untila diameter of 5 mm have twomain cutting edges and sinkerfor sink diameters larger than 5mm up to 20 mm have three ormore main cutting edges. Theyare Right hand cutting and havea fixed pilot for guidance in athrough hole or core hole.



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