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Product Description

Specifications:

The exterior roughness comparator is used to check the smoothness of mechanical workpieces by comparison, while the visual inspection or microscope is used to compare and test the degree of exterior roughness.

features:

RUG-100: notebook sample block (turning, end milling, flat milling, exterior grinding, external grinding, polishing)

The notebook sample block contains standards for the six most important processing methods among the popular "AA" values. All 30 samples were calibrated with uAA (arithmetic mean) and metric equivalent um Ra.

Sample exterior roughness comparator 30 pieces of composite bag fixing gauges

3 Flat grinding: 2,4,8; 7/8 "x 3/8" each; Each type of exterior finish is a true and consistent reproduction, with a true idea of the feel, appearance and texture of machined parts

Compare conveniently and quickly; Comply with S.A.E and military specifications

Overall wallet size (fully enclosed) L x W x H (inches): 6 x 3 x 3/8 * estimated *; Unit weight: 14 ounces * estimate only*

The package includes:

A set of 30 sample pieces

Payment

We accept payment via Paypal only.

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

Delivery details

We only ship to confirmed Paypal addresses. Please comfirm that your paypal address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size.

It takes about 7-15 working days to UK; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.