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Standard test blocks provide an easy means of checking your tester's accuracy at any time. Comparing a test reading of the block with the hardness number on the test block will indicate whether or not it needs attention. Brand:SPI
Standard test blocks provide an easy means of checking your tester’s accuracy at any time. Comparing a test reading of the block with the hardness number on the test block will indicate whether or not it needs attention.
Standard Shipping
Cost: $25
Free Shipping
We offer free shipping on orders over $30. Please check the free - shipping eligibility at checkout.
Delivery Time:
It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.
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