Optical Flats/ Special Measuring Gauge

For measuring internal diameter or internal through-groove of workpieces by comparative method. Reading can be shown on the outside micrometer

Can be fitted on to spindle chucks of varies machines to find the centers of workpieces.

Model No.	Measuring Range	Accuracy	Remark
CF-9000	Indicator 0-3mm	0.005mm	Full set with indicator. Straight feeler 3 pieces, Curved feeler 3 pieces, Center point feeler 1 piece, Stopper bar 1 piece.
	Short Feeler ⌀3-100mm
	Middle Feeler ⌀3-200mm
	Long Feeler ⌀3-300mm
	Center Point Feeler ⌀0-3mm

For roughness comparison by sight, touch, microscope and etc.

Model No.	Measuring Range	Pcs	Remark
RC-PG4	Ra: 0.05/0.1/0.2/0.4/0.8/1.6 um	6	Plain Grinding
RC-TU3	Ra: 0.4/0.8/1.6/3.2/6.3/12.5 um	6	Lathe Turning
RC-6SETS	Horizontal Milling / Vertical Milling / Turning	30	Horizontal Milling
	Ra: 0.4/0.8/1.6/3.2/6.3/12.5 um		Vertical Milling
	Plain Grinding Ra: 0.05/0.1/0.2/0.4/0.8/1.6 um		Lathe Turning
	Flat Lapping Ra: 0.05/0.1 um		Plain Grinding
	External Grinding Ra: 0.2/0.4/0.8/1.6 um		External Grinding

For checking micrometer anvil and spindle face for flatness and squareness to the spindle axis.

Model No.	Spec.(mm)	Accuracy
GB-OP12S	Φ30 (Thickness: 12, 12.12, 12.25, 12.37; 4 pcs/set) For 0-25mm	Flatness0.1μm
GB-OP25S	Φ30 (Thickness: 25, 25.12, 25.25, 25.37; 4 pcs/set) For 25-50mm	Parallelism 0.2μm

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Telescoping Gauge