Pick tool assembly and method of using same

A pick tool assembly for road milling or mining, comprising:

• a strike tip;
• a holder;
• and
• a reversible attachment mechanism for coupling the strike tip to the holder, in which the strike tip comprises polycrystalline diamond (PCD) material, a boundary of which is a strike surface including an apex, the apex defining a radius of curvature in a longitudinal plane extending through the apex and a distal end of the strike tip opposite the apex, parallel to a symmetry axis through the apex, the radius of curvature being 1 to 6 mm,
• configured such that the strike tip can be non-moveably coupled to the holder in two mutually opposite orientations relative to the holder, the orientations being about the symmetry axis, the attachment mechanism limiting the opposite orientations to a single pair of opposite direction on diametrically opposite sides of the symmetry axis, and configured such that the strike tip may be coupled to the holder assembly in either of two and only two mutually opposite orientations.