Specification AgeRangeDescription : adult Brand : DISIROU BulletPoint1 : Size Range: 1/2 - 1-11/16" by 1/16" intervals. BulletPoint2 : Matched pair height: +/- .0002". BulletPoint3 : Parallelism: +/- .0001"; Hardness: 50 HRc. BulletPoint4 : Made from tough tool steel. BulletPoint5 : Exclusive 20 pair ultra thin parallel set Each parallel is 1/32" thick x 6.6" long without any holes on the body Product includes Complete with plastic case. Color : 40pcs ExternallyAssignedProductIdentifier : 7505700062066 ItemName : DISIROU Gauge Block Set, Setup Blocks, Machinist Parallel Blocks Bars, 40-Piece Set, 1/32 Inch Wide X 6 Inch Long Straight Edge Bar Blocks ½ Inch to 1-11/16 Inch for Router and Table Saw ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : gage-blocks Manufacturer : DISIROU ModelName : 1005004225959967 ModelNumber : 1005004225959967 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 1005004225959967 ProductDescription : About gauge blocks’ history: Gauge blocks were invented in 1896 by the Swedish mechanic Carl Edvard Johansson. They are used as a reference for calibrating measuring devices used in machine shops, such as micrometers, sine bars, calipers and micrometers (when used for inspection). Gauge blocks are the main means of standardising lengths used in industry.
Tips when you use them: To use them, the blocks are removed from the set, cleaned of their protective coating (petroleum jelly or oil) and screwed together to form a stack of the desired size. The blocks are calibrated accurately at 20 °C (68 °F) and should be kept at this temperature when measuring. This mitigates the effects of thermal expansion. Wear-resistant blocks, made of a harder substance such as tungsten carbide, are mounted at the ends of the stack wherever possible to protect the gauge block from damage during use. ProductSiteLaunchDate : 2024-09-19T03:26:45.013Z Size : A UnitCount : 1 UnspscCode : 52140000