Ideal for use in the Drafting Room,Engineering Department or in the small shop.
This set has 30 specimens, each are 7/8″ x 3/8″ comprising:
•3 Specimens Flat Lapping – 2, 4 and 8µ” AA
•3 Specimens Reaming – 16, 32 and 63µ” AA
•6 Specimens Grinding – 2, 4, 8, 16, 32 and 63µ” AA
•6 Specimens Horizontal Milling – 16, 32, 63, 125, 250 and 500µ” AA
•6 Specimens Vertical Milling – 16, 32, 63, 125, 250 and 500µ” AA
•6 Specimens Turning – 16, 32, 63, 125, 250 and 500µ” AA
The scale conforms to S.A.E. and military specifications for visual and tactile inspection.