CONCISE
circular slide rule
circular slide rule


The CONCISE Circular Slide Rules have been standing far above the average in its high precision and reliability in the history of this product category. It's all because CONCISE was originally established in 1954 as a manufacturer of circular slide rules.
What history proves...   It's 'Function-minded Quality Products'.


comparison chart

CONCISE Online Shop > Slide Rules > Circular Slide Rule I (introduction)


  Circular Slide Rule No. 27N
  circular slide rule No. 27N
  • Our price: ¥1,000
  • Size: 84mm (3-5/16") in diameter
  • Scale: D · C, CI, A, K on the front


The most popular circular slide rule for standard Japanese use. Makes general calculations such as multiplication, division, proportion, square root and cube root.

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  Circular Slide Rule No. 28N
  circular slide rule No. 28N
  • Our price: ¥1,000
  • Size: 84mm (3-5/16") in diameter
  • Scale: D · C, CI, A, K on the front


The most popular circular slide rule for standard English use. Makes general calculations such as multiplication, division, proportion, square root and cube root.

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  Circular Slide Rule No. 270N
  circular slide rule No. 270N
  • Our price: ¥2,200
  • Size: 100mm (3-15/16") in diameter
  • Scale: A, D · C, CI, B, K, L on the front
    DI, D · S, T1, T2, ST on the back

Makes various calculations ranging from general multiplication and division to the square root, cube root and trigonometric function.

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  Circular Slide Rule No. 300
  circular slide rule No. 300
  • Our price: ¥2,600
  • Size: 110mm (4-5/16") in diameter
  • Scale: K, A, D · C, CI, B, L on the front
    LL3, LL2, D · C, S, T1, T2, ST on the back

Especially designed for professionals, this circular slide rule enables you to make various calculations ranging from general multiplication and division to the square root, cube root, trigonometric function and even logarithm and descending series.

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  Circular Slide Rule for Metal Weight Calculation*
  circular slide rule for metal weight calculation
  • Our price: ¥2,400
  • Size: 106mm (4-3/16") in diameter
  • Scale: exclusive


Calculates the weight of metal you would like to know. Precisely converts the specific gravity of the metal into its weight according to its shape such as a plate, pipe, pole, etc.

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  Circular Slide Rule No. 480 Professional*
  circular slide rule No.480 professional
  • Our price: ¥2,500
  • Size: 105mm (4-1/8") in diameter
  • Scale: D · C, CI, P1, P2 on the back


Makes calculations concerning the number of days. Helps you organize each time frame out of the total schedule. Also serves as a chart of the days elapsed.

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  Circular Slide Rule for Stadia Professional*
  circular slide rule for stadia professional
  • Our price: ¥2,400
  • Size: 96mm (3-3/4") in diameter
  • Scale: D · SIN COS, COS2 on the front
    D · C, S, T, ST, L on the back

Helps you with stadia surveying. Equipped with a ruler for SIN, COS and COS2, this circular slide rule calculates the difference in height and horizontal distance very accurately.

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  Circular Slide Rule for Manufacturing Time Calculation
  circular slide rule for manufacturing time calculation
  • Our price: ¥3,000
  • Size: 120mm (4-3/4") in diameter
  • Scale: exclusive


Helps you calculate primarily estimated manufacturing time when using a machine tool. Can be applied to machinery such as a lathe and a milling machine.

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  Circular Slide Rule No. 73 (World's Local Time Calculating Scale)*
  circular slide rule No. 73
  • Our price: ¥400
  • Size: 77mm (3-1/16") in diameter
  • Scale: exclusive

Allows you to check the world's local time and difference in time at a glance. Can be applied to 40 cities of the world.
(Please note the country names on the slide rule are mentioned in Japanese.)

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*: These products are available with Japanese indices and instructions ONLY.

The CONCISE Online Shop also carries the following slide rules.
- Card-type Calculating Scale
- Navigation


Placing an Order
Describes the procedure for placing an order with the CONCISE Online Shop through the online system of your computer.

FAQ
Introduces 'Frequently Asked Questions' by our customers on the CONCISE Online Shop.

Security
Describes our policy to prevent our customer's personal information from being intruded or stolen.

Consignment Sale
Introduces the stores that carry the CONCISE products on consignment.

Inquiry
Mentions our telephone / facsimile number and e-mail address for the convenience of our customers.

For Corporate Customers
  We are always pleased to
  hold a consultation with
  you about OEM product
  planning, a large number
  of purchase orders, brand
  name imprinting, etc. on
  the phone or by e-mail.


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