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Arris: The sharp edge or exterior corner formed by the meeting of two surfaces, whether plane or curved.
Bed: a) The top or bottom horizontal surface of a piece, which is covered when the piece is set in place.b) A filled or open space extending horizontally between adjacent pieces set in place.
Face: The exposed major surface of the granite piece with its specified finish.
Head: The exposed surface of the jointed end of any given piece whose gauged dimension is not more than the minimum thickness of the material specified.
Joint: a) The end or side surface of a piece which is covered when the piece is set in place.b) A filled or open space extending vertically between adjacent pieces set in place.
Kerf: Slot cut into edge of granite piece with saw blade for insertion of anchor.
Quirk Miter: The right angle exposure from the face of the jointed edge whose dimension is a recommended minimum of 1/4". Polished finish on the quirk miter when the face is polished; honed when the face is honed; and diamond finish when the face is thermal.
Rebated Kirf: Additional cut that countersinks kerf from back edge of kerf to back edge of granite piece for the purpose of additional anchor clearance. This is not a gauged cut and if used for a bearing surface, must be shimmed to allow for tolerance in cut.
Seam: A crack or fissure in a rough quarry block.
Start: The beginning of a crack, caused by quarrying, fabrication or handling.
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