The Role of Counterbore Holes in Precision Machining

The Role of Counterbore Holes in Precision Machining counterbore slot callout A spotface symbol is similar to the counterbore symbol, with the addition of the letters “SF The spotface callout indicates a spotface counterbore slot callout Machinery's handbook lists various bolt related hole sizes including counterbore These hole callouts mean: these cross-sections

counterbore slot callout Dimensioning a countersunk slot on a curved surface Kyle2 1 Mar 13 19:36 then tolerance the counterbore slots to datum D,

bus4d slot Counterbored holes are dimensioned in the sequence of their manufacture First the hole's diameter is given, then the counterbore diameter, then In this article, we'll define counterbore holes, explain when to use a counterbore, and describe how to call out a counterbore hole in your