HHIP 4401-0012 Granite Surface Plate, Grade B, Ledge 0, 18" x 12" x 3"

Description

HHIP 4401-0012 Granite Surface Plate, Grade B, Ledge 0, 18" x 12" x 3"
HHIP 8" x 12" x 3 granite surface plate is grade b and ledge 0. Surface plates are checked by an auto-collimator for overall accuracy assurance. Accuracy is +/-0001". granite surface plates meet or exceed Federal specifications gg&g-p-463c. Includes a certificate of inspection. Note that these are not NIST traceable.
About HHIP
Since 1982, our first priority as an importer and superstore has been to provide superior value and service to the manufacturing and metalworking industries.
4401-0012 - 18 x 12 x 3 Grade B O Ledge Inspection Granite Surface Plate
Our surface plates are solid, flat plates used as the main horizontal reference plane for precision inspection, marking out (layout), and tooling setup. The surface plate is often used as the baseline for all measurements to a workpiece, therefore the primary surface is finished extremely flat.
We offer both A & B grade plates. While workshop grade is the least accurate, the plates are held to a high degree of flatness. Surface plates must be calibrated regularly.
Black granite surface plates are more wear-resistant because they are made of quartz-bearing granite.
Granite is inherently stable, non-magnetic, has excellent vibration damping characteristics, and will not rust.
Can be used with HHIP accessories such as squares, gauge blocks, sine bars, sine plates, dial indicators, parallels, angle plates, height gauges, etc.
12 x 9 x 3
18 x 12 x 3
24 x 18 x 3
36 x 24 x 4
48 x 36 x 6
Grade
B (Tool Room)
B (Tool Room)
B (Tool Room)
B (Tool Room)
B (Tool Room)
Accuracy
+/-.0001"
+/-.0001"
+/-.00015"
+/-.0002"
+/-.0004"
Weight (lbs.)
40
80
150
495
1,200
Ledge
0
0
0
0
0
18 x 12 x 3
24 x 18 x 3
36 x 24 x 4
48 x 36 x 6
24 X 18 X 36
Grade
A (Inspection)
A (Inspection)
A (Inspection)
A (Inspection)
Stand for Plate
Accuracy
+/-.000050"
+/-.000075"
+/-.0001"
+/-.0002"
Assembly Required
Weight (lbs.)
80
150
495
1,200
64
Ledge
0
0
0
0
Height - 36"
0-6" Dial Height Gage
12" Electronic Height Gage
12" Bluetooth Electronic Height Gage
1-2-3 Block Set
81 Piece Gage Block Set
Range/Size
0-6"
0-12"
0-12"
1 x 2 x 3"
.1001-1.000"
Graduation
.001"
.0005"/.01mm
.0005"/.01mm
.0002" Accuracy Per Inch
Grade B (AS-2) +/-50 millionth