{"product_id":"rg2-2-8702","title":"SK ring gauge 2.2MM","description":"[Features] ● Master gauge for zero-point adjustment of inner diameter measuring instruments. ● Sub-zero treatment to prevent aging and stabilization treatment.\u003cbr\u003e\u003cbr\u003e[Applications] ●As a master for inner diameter measuring instruments.\u003cbr\u003e\u003cbr\u003e[Specifications] - Nominal size (mm): 2.2 - Thickness (mm): 4 - Outer diameter (mm): 22 - Inner diameter tolerance: ±1.0 μm (1 to 30 or less), ±1.5 μm (over 30 50 or less), ±2.0 μm (over 50 to 100 or less), ±5.0 μm (over 100 to 200 or less) Surface roughness: within Ra0.1 μm Perpendicularity: 0.05\/φ100 Parallelism: within 0.015 mm\u003cbr\u003e\u003cbr\u003e[Specification 2] ●With inspection report ●Diameter variation: 1.0 μm (1 or more to 30 or less), 1.6 μm (over 30 to 50 or less), 2.0 μm (over 50 to 100 or less), 4.0 μm (100 over ~ 200 or less) Hardness: 653 ~ 772HV\u003cbr\u003e\u003cbr\u003e[Material\/Finish] Alloy tool steel\u003cbr\u003e\u003cbr\u003e[Set contents\/accessories]\u003cbr\u003e-\u003cbr\u003e\u003cbr\u003e[Note] ●Special sizes are also available.","brand":"kital-japanese","offers":[{"title":"Default Title","offer_id":42131213811941,"sku":"RG2.2                         8702","price":0.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/6459\/2613\/products\/RG2.2_8702__DA.jpg?v=1637864884","url":"https:\/\/orangebook-digest.com\/en\/products\/rg2-2-8702","provider":"kital-japanese","version":"1.0","type":"link"}