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Angle flat

Angle flat ruler (Dovetail ruler) Use: It is made according to JB/T7977-99 standard, the material is HT200-300, the work surface is scraped, used to measure the straightness and flatness of the workpiece, and the inspection and repair of the machine guide rail. The measurement is ground.

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Cast iron flat ruler and angle ruler series

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Product description

Angle flat ruler

Description: Angle flat ruler ( Swallowtail ) Purpose: Press JB/T7977-99 Standard manufacturing, material is HT200-300 The face is used by scraping process to measure the straightness and flatness of the workpiece, as well as the measuring grinding during inspection and repair of the machine guide.

Label: Cast iron flat ruler Cast iron right-angle ruler square-barrel flat-foot

Angle Flat Ruler Details

Angle flat ruler ( Swallowtail ) Purpose: Press JB/T7977-99 Standard manufacturing, material is HT200-300 The face is used by scraping process to measure the straightness and flatness of the workpiece, as well as the measuring grinding during inspection and repair of the machine guide.

Angle flat ruler ( Swallowtail ) Specs: (mm)500 Concave 500 Bump 750 Concave 750 Bump 1000 Concave 1000 Bump 1500 Concave 1500 Bump

Angle flat ruler ( Swallowtail ) Angle: 45 degrees, 50 years degrees, 55 degrees, 60 degree.

Angle flat ruler ( Swallowtail ) Product form: the product is divided into convex, concave two forms.

Specifications	Work surface straight ness or flatness		Two face angle alpha precision
	Accuracy level
	1st Level	2 Level	1st Level	2 Level
Convex 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 500	6	12	s1	s1.5
Concave 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 500	6	12	s1	s1.5
Convex 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 750	8	15	s1	s1.5
Concave 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 750	8	15	s1	s1.5
Convex 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 1000	9	18	s1	s1.5
Concave 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 1000	9	18	s1	s1.5
Convex 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 1500	15	30	s1	s1.5
Concave 45 degrees 55 degrees 60 degrees 90 degrees 120 degrees x 1500	15	30	s1	s1.