The granite used for surface plates has an excellent distribution of hard quartz which provides a smooth, long-wearing working surface. Granite surface plates meet or exceed Federal Specifications GGG-P463. Final inspection and calibration of every surface plate is …

Granite Surface Plates. Standridge surface plates provide an accurate reference plane for work inspection and for work layout. Their high degree of flatness, overall quality and workmanship also make them ideal bases for mounting sophisticated mechanical, electronic and optical gauging systems. The size and shape of the surface plate depends on ...

Our granite surface plates are manufactured in three ledge types as well as standard sizes and grades. Plates that have ledges are used for clamping purposes only. The overall flatness specifications of STANDRIDGE granite products meet and surpass the requirements set forth by the Federal Specification GGG-P-463c and ASME B89.3.7-2013.

4.5 mm. Approximate Weight (kg) 30. Our offered range of Surface Plate is extensively used for tool making, inspection, spotting and gauging purposes. Highly durable, reliable, resistant to corrosion and are easy to maintain, these surface plates make an ideal base for mounting sophisticated mechanical, electronic and optical gauging systems.

INSIZE 6900-A11 Granite Surface Plate, 12" x 18" x 3", Grade A. Misc. $302.10. $302. . 10. Get it as soon as Mon, May 17. FREE Shipping by Amazon. Only 15 left in stock - order soon.

Buy View Add to quote. Item added to quote. Item removed from quote. Compare. Mitutoyo 517-902-1 Granite Surface Plate 300 x 300 x 65mm Grade 1. 517-902-1. On Sale at. £178.20. £148.50 Ex. VAT.

Precision Granite Surface Plate Tables are a must-have for precise part measurement, part inspection and calibration. Our high-quality black granite surface plate inspection table provides the strongest, most durable and stable surfaces available. All of the precision granite surface plates we provide are black granite and have been ...

PRECISION GRANITE ® SURFACE PLATES are manufactured to meet or exceed the tolerances specified by ASME B89.3.7-2013 and Federal Specification GGG-P-463c.A PRECISION GRANITE ® Calibration Certificate is included with every surface plate guaranteeing overall surface flatness and repeat gage measurements, and is traceable to N.I.S.T. or equivalent National or International …

Granite surface plate calibration should be performed routinely to maintain proper flatness and ensure measurement accuracy over time. The intervals between calibrations depends on the environment where the surface plate is located. When needed, lapping or resurfacing is provided to bring measurements within grade guidelines.

Our accredited granite surface plate calibration covers grades AA, A and B for repeatability at 0.002 inches and flatness up to 60 inches in diagonal length. We also offer granite surface plate resurfacing if needed, with a relap to bring surface plate back into specification. For more information about surface plate calibration, click on the ...

Black Granite Surface Plate, 72 x 120 x 14, Grade A - Inspection, 13400 lbs: More Info.

Starrett Granite Surface Plate. Manufacturer: Starrett Starrett Granite Surface Plate, Grade B, Dimensions 2 Ft. x 3 Ft. x 3 Ft., Condition Good, Location Splitter Setup Room. Buyer responsible for removal. All equipment must be removed by Sept 30. Any items re...

Surface Plates. Precision Surface Plates. Crystal Pink. Superior Black. Surface Plate Accessories. Surface Plate Stands. Surface Plate Covers. Surface Plate Cleaner. Toolmakers Flat. Granite Tri-Squares. Five-Face Master Squares. Granite Parallels. Granite Angle Plates. Inserted Angle Plates. Granite Straight Edges. V-Blocks, 5-Face. Cubes, 6 ...

a0105101Title: Precision Surface Plates. a0105201Description01: Starrett Precision Granite Surface Plates provide a reference plane for work inspection and for work layout. Their high degree of flatness, overall quality and workmanship also make them ideal bases for mounting sophisticated mechanical, electronic and optical gaging systems.

The finest, most durable granite surface plate available to industry today The name is derived from the fact that it has the highest crystalline quartz content of any granite surface plate Even distribution of large quartz crystals provides a smooth finish, which significantly reduces wear on the surface plate and the instruments used on it

Rahn Granite Surface Plate Flat - 64 Pounds (18" x 12" x 4") Rahn 18" x 12" x 4" Granite Surface Plate Flat 64 Pounds If you have any questions please contact us prior to bidding. Phone: 805) 648-3300, Normal business hours are 8am- 5pm PST Monday through Friday, Recycled Goods is located at: 3820 N. Ventura Avenue.

Tru-Stone Technologies, Inc. is the world's largest manufacturer of custom precision granite products. Tru-Stone Technologies also offers you solutions in ceramic, porous ceramic, dense ceramic, carbon fiber and other mediums used in precision metrology applications for over 50 years.

STANDRIDGE Granite has been in the surface plate industry for over five decades. Because of our experience, STANDRIDGE played a significant part in the subcommittee to rewrite granite surface plate Federal Specification GGG-P-463c. As a family owned business, four generations of inherited talent promises to benefit our customers for years to come.

Jun 20, 2021· I'm doing the same thing as you, getting ready to lap a granite surface plate. I'm making my roller from a 3307 2RS 35x80x34,9 mm = 5307 2RS ball bearing plus a 280mm long shaft as a handle. The bearing races are made from hardened SAE 52100 steel, and the rubber seals should keep the diamond dust away from the balls.

GRANITE SURFACE PLATE 24x36x4"Made of granite, free from deterioration or dimensional change over time, minimal changes in dimension due to temperature changes. Meet GGG-P-463C. Optional: stand for granite surface plate (part no. 6902), jack for granite surface plate (part no 6903) 6900-A34: INSIZE USA, LLC

Precision Granite Surface Plate Tables. Buy a Precision Granite Surface Plate for precise part measurement, part inspection, and other applications. Our high-quality black granite surface plates provide the strongest, most durable and stable surfaces available. A Calibration Certificate for the surface plate table is included with every unit ...

48x96x8-B0 Precision Granite B Grade (Tool Room) Surface Plate 48" x 96" x 8". The 48x96x8-B0 Precision Granite B Grade (Tool Room) 48" x 96" x 8" Surface Plate is on sale at Gagi.. $4,999.00 $5,154.00. Call for Shipping. Showing 1 to 16 of 16 (1 Pages)

Owner, President and metrologist Dave Mardavich runs this second-generation family granite plate calibration business, combining experience, the right tools and an unwavering commitment to excellence.When your granite surface plates need calibration, repair, cleaning or machining, choose the company so many industry leaders have already trusted to work on their surface plates.

If a single point on the surface plate causes a variation that fails to comply with its guideline, we must reject or resurface the plate. If this is the case for your granite plate, you can trust our surface plate resurfacing services to restore your flat granite plate. Trust the Professionals With Your Surface Plate Calibration. At Garber ...

This tool room grade "B" Granite Plate has a bilateral accuracy of plus or minus .0001" total instrument runout for precision measurements from a common surface base. Granite Plates are harder than steel, non magnetic, least responsive to temperature changes, practically maintenance free and won't corrode like steel. Available with ledges for clamping purposes or without ledges.

Granite Surface Plates are used to support many different types of test pieces and have the dual purpose of also providing an excellent datum from which to begin a series of measurements with an instrument like a height gage.. A used or import surface plate can compromise the accuracy of your part measurements. Choose a Precision Granite USA Surface Plate and you will NOT be disappointed.

May 02, 2017· The role of precision granite surface plates and surface plate calibration cannot be under estimated. The flat reference that granite surface plates provide are the foundation upon which all other measurements are made. You can utilize the most modern, most accurate and most versatile measuring instruments but if the surface they are mounted ...

Grade A 18" x 24" Black Granite Surface Plate. $130.35. Page 288. Save Item. SKU 303-9132.

A granite surface plate is a much harder stone because of the quartz and more resistant to scratches than a cast-iron surface plate. Why is the granite surface plate much better than cast iron? Both the cast iron surface plate and granite surface plate have some advantages and disadvantages, they have different characteristics and reactions to ...

Black Granite Surface Plate Series 517. Specifications. Black Granite Surface Plates 50 lb Load

GRANITE SURFACE PLATE STANDS These are fabricated of heavy angle iron and reinforced to ensure rigidity. The stands are designed to withstand the weight of the granite surface plates and are supplied with 3 leveling screws for leveling the granite surface plates. OPTIONAL3 ACCESSORIES Plate will be supplied with a suitable

A leading manufacturer of granite surface plates, accessories and machine bases. Since 1984 we have strived to exceed our customers' expectations in every way. More Info < > What We Do. Our knowledgeable staff can assist you in selecting the best granite for your product, based in regard to uniformity of surface, accuracy, deflection under load ...

39-1/2" x 39-1/2" x 8" Gray Granite QC Setup Surface Plate On Cart W/Storage. $1,234.99. Was: $1,299.99. or Best Offer. Watch.

Granite surface plates from Insize & Mahr. Different grades available depending on application and flatness required (grade 1, 0 and 00). Made of choice fine grain black granite (Diabas). Granite surface plate stands from Insize and Mahr. Can hold weights up to 1200kg and is ideal for all sized gramote surface plates.

Surface plates are made of various types of granite – they are massive, stiff, and hard. The top work surface is lapped flat and smooth to provide a critical reference surface for many types of dimensional measurements. The quality of surface plates had been standardized for decades through the Federal Specification GGG-P-463c.

11. $99. . 95 In Stock 9" x 12" x 3" Granite Surface Plate, No Ledge (G9648) 15. $53. . 95 In Stock 24" x 36" x 4" Granite Surface Plate, 2 Ledges (G9657) 1.

Measuring and Inspection » Surface Plates and Stands » Granite Surface Plates Viewing Page 1 of 5 (55 results) View As: Sort By: Best Match. Best Match; Price: Highest First; Price: Lowest First; Results Per Page: 12 12; 24; 42; 12X18GR-B TOOLROOM O-LEDGE SURFACE PLATE. SKU: 1 …

Surface plates are made from granite and offer a flat reference plane for QA, inspection, metrology, and setup applications. Granite surface plates are durable and rust- and corrosion-resistant and almost entirely nonmagnetic. Pink and gray granite surface plates have the highest quartz content which means more wear resistance and greater ...

Granite surface plate has many advantages over cast iron surface plates: Twice as hard as cast iron. Minimal changes in dimension due to temperature changes. Free from wringing, so there is no interruption of work. Free from burrs or protrusions because of the fine grain structure and insignificant stickiness; this ensures high degree of ...

36" Long x 24" Wide x 6" Thick, Granite Inspection Surface Plate A Inspection Grade, 0.0002" Unilateral Tolerance, Includes NIST Traceability Certificate. MSC# 86432929 Starrett (80658) Ships from Mfr. …