Surface Finish Comparator-Plastic
Surface Finish Comparators. for Engineers, inspectors, Purchasing Agents. Handy, inexpensive, Use as a Give-Away for Classes on Drafting, etc. Accurate - Exact Reproductions. Range: 16 to 500 Microinch Finish. Convenient - Pocket Size (3 1/2" x 5"), Weight: 1 oz. Has handy "hang-up hole". Versatile - Specimens include Mill, End Mill, Grinding, Shape Turning, and Flame Cut. 18 Specimens: Machining Method....... Microinches (AA or Ra) Grinding: 16, 32, 63, 125 and 250 End Milling: 63, 125, 250 and 500 Milling: 63, 125, 250 and 500 Shape Turning: 63, 125, 250 and 500 Flame Cutting: 500 Model No. 16007, Made of tough, scratch Resistant ABS Unbreakable Plastic. Black Color. Complete With Plastic wallet.