Calculated Industries 4087 Machinist Calculator Pro

This product has been discontinued. Please contact us for alternatives.

• Enter Numeric, Fractional, Metric Thread Sizes and Drill Sizes - and display tap, roll tap, close and free fit drill sizes plus pitch, major and minor diameters
• Built-in drill and thread size tables - save time and steps
• Speeds and Feeds calculate for milling, turning and drilling; cutting speed, spindle speed (RPM), feed rate (IPM), cutting feed, feed per tooth/chip load

For a range of calculation assistance, turn to the Machinist Calc Pro Calculator w/ Case by Calculated Industries. Ideal for machining pros and shop owners who want to increase productivity and profits in the design, layout, and set-up stages of production as well as reduce wear and tear on costly cutting tools. It comes with a rugged shock-, dust-, and moisture-resistant Armadillo Gear case to keep it protected from shop hazards and falls

Right Triangle Math - plus trigonometric functions

Drill Points - enter the cutting angle and drill size to calculate the drill point cut depth

Bolt Pattern Hole Layouts - enter start angle, number of bolts, diameter and optional x, y offset; calculate x and y coordinates. Find center-to-center spacing for bolt pattern layouts

3-Wire Measure - enter Wire Size (or use calculated Best Wire size) and 3-Wire Measurement to calculate pitch diameter

Key Specifications

Works as a Standard Calculator: Yes

Size: 6.25" x 3.5" x 0.9" (160 mm x 90 mm x 25 mm)

Power: Two 1.5-volt (LR-44/A76) Long-life batteries (included)

Display Type: 12 Digits (8 normal, 4 fractions) with full annunciators

Display Dimensions: 0.625" x 2.5"

Accuracy: 12 Digit Internal Accuracy

Compliant with: ANSI/ASME B1.1-2003 and ANSI/ASME B1.13M-2005)

Product Contains

Calculator

Armadillo Gear case

Quick reference guide

User guide

Battery

Shipping & Delivery Information

We are committed to providing reliable, flexible delivery options to suit your needs. Here’s everything you need to know about our shipping and delivery process.

Our Couriers

We’ve partnered with trusted couriers to ensure your order arrives safely and on time:

• Royal Mail
• DPD
• DHL
• Palletways (for heavier items)

This variety enables us to offer delivery options tailored to your order size and location.

Same-Day Dispatch

• Order by 2:30 PM GMT/UTC on a working day, and we’ll dispatch all in-stock items the same day.
• Orders placed after this time will be processed on the next working day.

Delivery Times

• UK Orders: 1–5 working days*
• European Orders: 3–10 working days*
• Rest of the World: 4–15 working days*

*Delivery times are estimates and may vary based on your location and courier performance.

Shipping Costs

• Shipping rates are calculated based on the total weight of your order.
• A small additional charge (around 10%) is added for packaging and handling.
• The most suitable delivery option will be automatically selected at checkout.
• If no option is shown, please contact us for assistance.

Special Delivery Options

• Time-specific and Saturday delivery options are available for added convenience.
• These can be selected during checkout, where available.

International Shipping

• We ship to most countries worldwide.
• Simply select your destination at checkout to view available options.
• Import taxes and customs duties are not included in our shipping fees and must be paid upon your goods’ arrival at customs.
  For more information, visit DHL.com or consult your local postal service.

Order Collection

Prefer to collect your order?

• Select Collection as your delivery option at checkout, and we’ll have your order ready for pickup.

Additional Information

• All delivery times are estimates and subject to factors beyond our control, such as customs delays or courier issues.
• For any questions or further assistance, please don’t hesitate to contact us.

Warranty Coverage

Standard Warranty: All products are guaranteed for one year from the date of purchase (unless otherwise specified).

During the warranty period, we will repair or replace any defective products at no charge (return-to-base warranty), excluding normal wear and tear.

Eligibility

To benefit from our warranty, please ensure that:

• The product has been installed and used according to the instructions or user manual provided.
• The product is used for its intended purpose as described in the manual.

Please note: Accidental damage, consequential losses, and misuse are not covered by this warranty.

Exclusions

The following consumable items are not covered:

• Batteries
• Solder tips
• Heating elements