12″ x 18″ x 4″ Challenge SURFACE PLATE

Color: Black granite … Grade: “AA” … Flatness: .000050″ (Lab.) … Ledges: 0

12″ x 18″ x 4″ Challenge SURFACE PLATE

Color: Black granite … Grade: “A” … Flatness: .00010″ (Tool room) … Ledges: 0

12″ x 18″ x 4″ SHEFFIELD SURFACE PLATE

Color: Pink granite … Grade: “A” … Flatness: .00010″ (Tool room) … Ledges: 0

18″ x 24″ x 2″ SURFACE PLATE

Color: Black granite … Grade: “B” … Flatness: .00020 (Shop floor) … Ledges: 0 … Thd. inserts

18″ x 24″ x 3″ SURFACE PLATE

Color: Black granite … Grade: “A” … Flatness: .00040 (Toolroom) … Ledges: 0

18″ x 24″ x 3″ Avondale SURFACE PLATE

Color: Black granite … Grade: “A” … Flatness: .00040 (Toolroom) … Ledges: 0

24″ x 30″ x 4″ SURFACE PLATE

Color: Black granite … Grade: “B” … Flatness: .00034 (Shop floor) … Ledges: 0 … Thd. inserts w/stand

24″ x 36″ x 4″ Challenge SURFACE PLATE

Color: Black granite … Grade: “B” … Flatness: .00020″ (Shop floor) … Ledges: 0

24″ x 36″ x 4″ Challenge SURFACE PLATE

Color: Black granite … Grade: “B” … Flatness: .00020″ (Shop floor) … Ledges: 0