Specification Brand : Respicefinem BulletPoint1 : Measurement use them gauges to check of slots and holes accurately BulletPoint2 : Steel Block, Premium Material These Steel Parallel Blocks Are To Provide Accurate Measurements For Various Applications, Replacing The Need For Multiple Pads BulletPoint3 : The Small Parallel Pads, And Are Attached With Screw, The Large Parallel Pads, E And With Two Screws BulletPoint4 : These For Parallel Blocks Be Used For Large Measuring From 3 8In 2 4In BulletPoint5 : Versatile Usage Serve Handy Gauges For Checking Slot And Hole With Ease And Accuracy Color : White ExternallyAssignedProductIdentifier : 7505628258268 ItemName : Respicefinem Parallel Block Block 1-2-3 24. 0×15. 0×2. 0 6 Pcs Steel Parallel Block Set 3 8~2-1 4In Adjustment Range for Accurate Measurement Gauge Block Gage Blocks ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 24 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : gage-blocks Manufacturer : Respicefinem MeasurementAccuracy : 1 ModelNumber : Respicefinembgzprd7fkn NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Respicefinembgzprd7fkn ProductDescription : Features: Due to their adjustable characteristics, they can be adjusted to the exact size by micrometer measurement, and can replace multiple solid parallel pad. These parallel pads are just as useful as gauges when checking the dimensions of the slots and holes. This parallel pad can slide smoothly and is easy to adjust. Smaller parallel pads A, B and C are locked with one screw, while large parallel pads D, E and F are locked with two screws. The adjustment range from 3/8in~2-1/4in for large range measuring.