Specification Brand : Ylwxzenith BulletPoint1 : Variable Range & : Offering an adjustment range from 3/8in to 2-1/4in, this parallel block set ensures accurate measurements for a wide range of applications, making it an essential tool for accurate work. BulletPoint2 : Versatility & Convenience: set includes six work (of art) of Variable parallel blocks, locked with screws for stability. smaller parallel pads are secured with one screw, while larger ones use two, ensuring a firm grip during use. BulletPoint3 : smoothness : Designed for smoothness sliding and easy adjustment, these parallel pads facilitate efficient and accurate measurements, saving time and effort in workshop or laboratory. BulletPoint4 : Durability & Quality: Made from steel, these parallel blocks are built to last, withstanding rigors of frequent use. Their sturdy construction ensures reliable performance over long term. BulletPoint5 : Multipurpose Tool: Not only useful as gauges for checking sizes of slots and holes, but these Variable parallel blocks can also replace multiple solid parallel pads due to their Variable characteristics, providing for money. IncludedComponents : 1pcs 1.0", 2.0", 3.0",4.0",1.5", 2.5", 3.5",4.5" Test Block ItemName : 6 Pcs Steel Variable Parallel Block Set, 3/8~21/4in Adjustment Range, Precise Measurement Tool, includes Small and Large Parallel Pads, Easy Slide and Adjustment, Micrometer ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 24 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : gage-blocks Manufacturer : Ylwxzenith MeasurementAccuracy : precision ModelName : Agatigeydaqohxu80 ModelNumber : Ylwxzenithp9ni38gsgv NumberOfItems : 1 PartNumber : Ylwxzenithp9ni38gsgv 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.