Stone straight edge OS-102C

Class A
(102C-400A/102C-630A/102C-1000A/
102C-1600A/102C-2000A)

Class AA
(102C-400AA/102C-630AA/
102C-1000AA/102C-1600AA/102C-2000AA)

Eyebeamstraight-edged OS-131

Grade B

Class A

A-class quenching

(131-300B(A,AH)/131-500B(A,AH)/
131-750B(A,AH)/131-1000B(A,AH)/
131-1200B(A,AH)/131-1500B(A,AH)/
131-1800B(A,AH)/131-2000B(A,AH)/
131-2500B(A,AH)/131-3000B(A,AH)/
131-3500B(A,AH)/131-4000B(A,AH)/
131-5000B(A,AH))

Workable straight edge OS-132

Grade B

Class A

A-class quenching

(132-300B(A,AH)/132-500B(A,AH)/
132-750B(A,AH)/132-1000B(A,AH)/132-1500B(A,AH)/132-2000B(A,AH)/
132-2500B(A,AH)/132-3000B(A,AH)/132-4000B(A,AH)/
132-5000B(A,AH))

Knife-edgestraight edge OS-133

Standard
(133-75/133-80/133-100/133-125/133-150/133-175/133-200/133-250/133-300/133-400/133-500)

Precision inspection straight edge OS-134

Standard
(134-150/134-200/134-250/134-300)

Triangular inspectionstraight edge OS-135

Standard
(135-50/135-75/135-100/135-125/135-150/135-200/135-300)

Steelstandardstraight-edged OS-136

Class A

A-grade quenching
(136-300A(AH)/136-500A(AH)/
136-750A(AH)/136-1000A(AH)/
136-1500A(AH)/136-2000A(AH)/
136-2500A(AH)/136-3000A(AH)/
136-4000A(AH)/136-5000A(AH)/

Cast iron combstraight edge OS-137

Grade B

Class A

Class AA
(137-500B(A,AA)/137-750B(A,AA)/137-1000B(A,AA)/137-1250B(A,AA)/137-1500B(A,AA)/137-2000B(A,AA)/137-2500B(A,AA)/137-3000B(A,AA))

Graduated steelstandard straight edge type A OS-138

Standard
(138-500/138-750/138-1000)

Graduated Steel Standard Straight Edge Type B OS-139

Standard
(139-500/139-750/139-1000)

Steel straight edge normal OS-140

Grade B

Class A

A-grade quenching
(140-150B(A/AH)/140-200B(A/AH)/
140-250B(A/AH)/140-300B(A/AH)/
140-450B(A/AH)/140-500B(A/AH)/
140-600B(A/AH)/140-750B(A/AH)/
140-900B(A/AH)/140-1000B(A/AH)/
140-1200B(A/AH)/140-1500B(A/AH)/
140-1800B(A/AH)/140-2000B(A/AH)/
140-2500B(A/AH)/140-3000B(A/AH)/
140-3500B(A/AH)/140-4000B(A/AH)/
140-5000B(A/AH))

Steelstraight edgebevel OS-141

Grade B

Class A

A-grade quenching
(141-150B(A/AH)/141-200B(A/AH)/
141-250B(A/AH)/141-300B(A/AH)/
141-450B(A/AH)/141-500B(A/AH)/
141-600B(A/AH)/141-750B(A/AH)/
140-900B(A/AH)/141-1000B(A/AH)/
141-1200B(A/AH)/141-1500B(A/AH)/
141-1800B(A/AH)/141-2000B(A/AH)/
140-2500B(A/AH)/141-3000B(A/AH)/
141-3500B(A/AH)/141-4000B(A/AH)/
141-5000B(A/AH))

Wide-width long surface plate OS-142

Standard
(142-500/142-750/142-1000/142-1500/142-2000/142-3000)

Narrow width long surface plate OS-143

Standard
(143-500/143-750/143-1000/143-1500/143-2000/143-3000/143-5000)

I-shaped straight edge(Aigata straight-edge) OS-146A

Grade B

Class A

A-grade quenching
(146A-300B(A/AH)/146A-500B(A/AH)/
146A-1000B(A/AH)/146A-1500B(A/AH)/
146A-2000B(A/AH)/146A-3000B(A/AH))

Rectangular straight edge OS-146B

Grade B

Class A

A-grade quenching
(146B-300B(A/AH)/146B-500B(A/AH)/
146B-1000B(A/AH)/146B-1500B(A/AH)/
146B-2000B(A/AH)/146B-3000B(A/AH))