Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.

Used to produce holes at an angle, overlapping or at close centres.