You can inspect the angle of the cutting edge of a general thread cutting tool.
It is used for angle inspection of the tool blade shape when threading with a lathe.

Item description:
Brand: SK                                                     
Item Name: Center Gauges  
Part Number: SG-60M
Size:
Measurable angle (°): 60
Scale: 0 to 25 mm, 0.5 mm jump, 1 mm jump
Product name: Fixed knob set
Instrumental error: ± 1 °
Weight: 10g
Other Details:
Material: Carbon steel for machine structure.

Combine Shipping:
Please request invoice when you purchase multiple items. 
Handling Time:
We ship out within 3-5 business days after receiving payment.
Tracking Information:
We provide tracking number once item as shipped.
Customs duty:
Import duties, taxes, and charges are not included in the item price or shipping cost.
These charges are the buyer's responsibility.

Payment:
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Payment is expected within 7 business days.

About Us:
We are specialized store in Japanese Tool brand.
Please contact us if you have any question.
Ninja Tools - 忍者工具店