# Metrik MFG

> The practical manufacturing workbench for engineers, machinists, fabricators and production teams.


## Posts

- [Why Unit Consistency Matters in Shop Calculations](https://metrikmfg.com/why-unit-consistency-matters-shop-calculations/): Mixing inches, millimeters, SFM, RPM, and other unit families is one of the fastest ways to get a believable but wrong result.
- [Bolt Circle Coordinates for CNC Drilling](https://metrikmfg.com/bolt-circle-coordinates-for-cnc-drilling/): Generate and verify bolt-circle X and Y coordinates before using a drilling pattern in a CNC program.
- [Surface Finish and Feed Per Tooth](https://metrikmfg.com/surface-finish-and-feed-per-tooth/): See how theoretical milling roughness changes as feed per tooth and tool diameter change.
- [Tap Drill Size: A Practical Starting Calculation](https://metrikmfg.com/tap-drill-size-practical-calculation/): Use the common metric and inch starting relationships for tap-drill selection, then verify against the actual thread standard.
- [What Goes Into a CNC Machine Hourly Rate](https://metrikmfg.com/what-goes-into-cnc-machine-hourly-rate/): Understand the difference between a simple machine rate and a rate that reflects real operating cost.
- [CNC Machining Time: Cycle Time, Setup, and Job Planning](https://metrikmfg.com/cnc-machining-time-cycle-setup-job-planning/): Turn cycle time into a realistic job duration by including setup time and a measured downtime allowance.
- [How to Use Tool Life Data Without Guessing](https://metrikmfg.com/how-to-use-tool-life-data/): A practical introduction to the Taylor tool-life equation and why its constants must come from real cutting data.
- [How to Estimate Material Removal Rate](https://metrikmfg.com/how-to-estimate-material-removal-rate/): Learn the simple MRR relationship between feed rate, width of cut, and depth of cut.
- [Feed Rate vs Chip Load: The CNC Milling Relationship](https://metrikmfg.com/feed-rate-vs-chip-load-cnc-milling/): See how spindle speed, flute count, and chip load combine to produce a milling feed rate.
- [How to Calculate CNC Spindle Speed From SFM](https://metrikmfg.com/how-to-calculate-cnc-spindle-speed-from-sfm/): A practical explanation of the spindle-speed formula and the inputs that matter before setting CNC RPM.

## Pages

- [Sources & Calculation Methodology](https://metrikmfg.com/sources-methodology/): Metrik MFG is designed to make manufacturing calculations and engineering references transparent enough to check.
- [Editorial & Content Policy](https://metrikmfg.com/editorial-policy/): Metrik MFG is built around a simple principle: publish resources because they solve a real manufacturing problem, not merely because a keyword exists.
- [Cookie Policy](https://metrikmfg.com/cookie-policy/): Last updated: October 10, 2026.
- [Engineering & Technical Disclaimer](https://metrikmfg.com/disclaimer/): Metrik MFG provides practical calculation, reference, and educational resources.
- [Terms of Use](https://metrikmfg.com/terms-of-use/): Last updated: October 10, 2026.
- [Takt Time Calculator](https://metrikmfg.com/calculators/takt-time-calculator/): Calculate required production pace from net available production time and customer demand.
- [Bend Allowance Calculator](https://metrikmfg.com/calculators/bend-allowance-calculator/): Calculate sheet-metal bend allowance from bend angle, inside radius, thickness, and K-factor.
- [Tool Deflection Calculator](https://metrikmfg.com/calculators/tool-deflection-calculator/): Estimate static round-tool deflection using force, overhang, diameter, and elastic modulus.
- [Radial Chip Thinning Calculator](https://metrikmfg.com/calculators/radial-chip-thinning-calculator/): Calculate a radial chip-thinning factor and adjusted chip load for light radial CNC milling.
- [Manufacturing Source Library](https://metrikmfg.com/resources/manufacturing-source-library/): A curated starting library of manufacturing standards, toolmaker references, material data and production references used by Metrik MFG.
- [CNC Machining Cheat Sheet](https://metrikmfg.com/resources/cnc-cheat-sheet/): A compact CNC machining cheat sheet for RPM, cutting speed, feed, chip load, MRR, setup checks and troubleshooting.
- [Inspection Report Template](https://metrikmfg.com/resources/inspection-report-template/): A practical dimensional inspection report template for first-piece, in-process and final inspection records.
- [Machining Job Traveler Template](https://metrikmfg.com/resources/machining-job-traveler-template/): A printable machining job traveler for routing, quantities, inspection points, rework and operator sign-off.
- [CNC Setup Sheet Template](https://metrikmfg.com/resources/cnc-setup-sheet-template/): A printable CNC setup sheet for job data, stock, work offsets, tools, cutting data, inspection and operator handover.
- [316 Stainless Steel](https://metrikmfg.com/materials/stainless-steel-316/): Manufacturing reference for 316 stainless steel covering density, structure, corrosion-resistance considerations, machining and applications.
- [304 Stainless Steel](https://metrikmfg.com/materials/stainless-steel-304/): Manufacturing reference for 304 stainless steel covering density, structure, machining considerations, applications and trusted source notes.
- [1018 Steel](https://metrikmfg.com/materials/steel-1018/): Practical reference for AISI 1018 steel covering density, typical properties, machinability, applications and CNC considerations.
- [7075 Aluminum](https://metrikmfg.com/materials/aluminum-7075/): Manufacturing reference for 7075 aluminum covering strength, temper, machining behavior, applications, density and source notes.
- [6061 Aluminum](https://metrikmfg.com/materials/aluminum-6061/): Practical manufacturing reference for 6061 aluminum covering properties, temper, machining, applications, weight and related tools.
- [Metal Density Table](https://metrikmfg.com/references/metal-density-table/): A practical density reference for common aluminum, steel, stainless, titanium, copper and brass grades, with units and weight-calculation guidance.
- [GD&T Datums Reference](https://metrikmfg.com/references/gdt-datums-reference/): A practical reference to datum features, primary/secondary/tertiary datum references and datum reference frame concepts under ASME Y14.5.
- [Metric Thread Chart](https://metrikmfg.com/references/metric-thread-chart/): A selected shop reference for common metric M sizes and pitches, with terminology, tap-drill notes and ISO source links.
- [Milling Formulas Reference](https://metrikmfg.com/references/milling-formulas/): Technical reference for CNC milling formulas covering cutting speed, feed, chip load, MRR, cutting power and spindle torque.
- [CNC Feeds & Speeds Reference](https://metrikmfg.com/references/cnc-feeds-and-speeds-reference/): A practical formula reference for CNC milling cutting speed, spindle RPM, feed per tooth, feed rate and material removal rate.
- [Takt Time vs Cycle Time](https://metrikmfg.com/guides/takt-time-vs-cycle-time/): A manufacturing guide explaining the difference between takt time and cycle time, with formulas, examples and a production decision map.
- [How to Choose a Tap Drill Size](https://metrikmfg.com/guides/how-to-choose-tap-drill-size/): A practical guide to metric and imperial tap-drill selection, thread percentage, tap type, material and final chart verification.
- [How to Improve Machining Surface Finish](https://metrikmfg.com/guides/improve-machining-surface-finish/): A practical CNC surface-finish guide covering feed, tool geometry, runout, toolpath, rigidity, vibration, material and tool condition.
- [How to Reduce CNC Chatter](https://metrikmfg.com/guides/how-to-reduce-cnc-chatter/): A practical troubleshooting guide for CNC chatter and vibration, covering tooling, engagement, workholding, machine rigidity and controlled parameter changes.
- [How to Calculate CNC Speeds and Feeds](https://metrikmfg.com/guides/how-to-calculate-cnc-speeds-and-feeds/): A practical guide to spindle speed, cutting speed, feed rate, chip load, radial engagement, axial depth, and material removal rate for CNC milling.
- [Material Weight Estimator](https://metrikmfg.com/tools/material-weight-estimator/)
- [Tolerance Stackup Tool](https://metrikmfg.com/tools/tolerance-stackup/)
- [Bolt Pattern Generator](https://metrikmfg.com/tools/bolt-pattern-generator/)
- [G-code Coordinate Formatter](https://metrikmfg.com/tools/g-code-coordinate-formatter/)
- [Unit Converter](https://metrikmfg.com/tools/unit-converter/)
- [Decimal Fraction Converter](https://metrikmfg.com/tools/decimal-fraction-converter/)
- [Thread Size Converter](https://metrikmfg.com/tools/thread-size-converter/)
- [Triangle Solver](https://metrikmfg.com/tools/triangle-solver/)
- [Polar Coordinate Generator](https://metrikmfg.com/tools/polar-coordinate-generator/)
- [Spindle Load Calculator](https://metrikmfg.com/calculators/spindle-load-calculator/)
- [Torque Calculator](https://metrikmfg.com/calculators/torque-calculator/)
- [Cutting Power Calculator](https://metrikmfg.com/calculators/cutting-power-calculator/)
- [Surface Finish Calculator](https://metrikmfg.com/calculators/surface-finish-calculator/)
- [Tool Life Calculator](https://metrikmfg.com/calculators/tool-life-calculator/)
- [CNC Cost Calculator](https://metrikmfg.com/calculators/cnc-cost-calculator/)
- [Machining Time Calculator](https://metrikmfg.com/calculators/machining-time-calculator/)
- [Tap Drill Size Calculator](https://metrikmfg.com/calculators/tap-drill-size-calculator/)
- [Drill Speed Calculator](https://metrikmfg.com/calculators/drill-speed-calculator/)
- [Material Removal Rate Calculator](https://metrikmfg.com/calculators/material-removal-rate-calculator/)
- [Surface Speed Calculator](https://metrikmfg.com/calculators/surface-speed-calculator/)
- [Chip Load Calculator](https://metrikmfg.com/calculators/chip-load-calculator/)
- [Feed Rate Calculator](https://metrikmfg.com/calculators/feed-rate-calculator/)
- [Spindle Speed RPM Calculator](https://metrikmfg.com/calculators/spindle-speed-rpm-calculator/)
- [Bolt Circle Coordinate Generator](https://metrikmfg.com/tools/bolt-circle-coordinate-generator/): Generate XY coordinates for equally spaced holes on a bolt circle. Choose the pattern size, hole count, and starting angle.
- [Speeds and Feeds Calculator](https://metrikmfg.com/calculators/speeds-and-feeds/): P1018 Low Carbon SteelGood machinability. Baseline reference.✓ P4140 Alloy SteelTougher alloy steel. Common shop material. N6061-T6 AluminumHigh machinability.
- [Manufacturing Applications & Solutions](https://metrikmfg.com/solutions/): Some problems need a tool. Some need software. Some need people to get the work done.
- [Tell Us Your Problem](https://metrikmfg.com/contact/): Have a manufacturing calculation, engineering reference, workflow, application, or production problem that needs a better solution?
- [About Metrik MFG](https://metrikmfg.com/about/): Metrik MFG is dedicated to making manufacturing operations, workflows, and processes easier, so you can focus on the bigger picture, save time, and build your dreams.
- [Resources](https://metrikmfg.com/resources/): Documents, downloads, templates, checklists, cheat sheets, research, case studies, standards references, and useful manufacturing resources.
- [Business Applications](https://metrikmfg.com/business-applications/): Tools for quoting, job costing, labor, machine rates, procurement, inventory, job planning, and other manufacturing business operations.
- [Manufacturing Processes](https://metrikmfg.com/processes/): Information about machining, welding, fabrication, casting, forming, additive manufacturing, plastics, EDM, cutting, and other manufacturing processes.
- [Materials](https://metrikmfg.com/materials/): Manufacturing material data, properties, weight information, machining references, welding information, and related tools.
- [Practical Guides](https://metrikmfg.com/guides/): Simple guides to help you understand calculations, manufacturing processes, costing, planning, and other practical work.
- [Shop References](https://metrikmfg.com/references/): Charts, tables, diagrams, documents, research, practical examples, checklists, downloads, and other manufacturing references.
- [Production Utilities](https://metrikmfg.com/production/): Tools that help with production planning, capacity, scheduling, OEE, downtime, quality, inventory, maintenance, and everyday shop operations.
- [Tools](https://metrikmfg.com/tools/): Practical engineering and manufacturing tools for everyday work, including generators, converters, selectors, planners, and utilities.
- [Calculators](https://metrikmfg.com/calculators/): Manufacturing calculators for machining, materials, production, costing, fabrication, welding, quality, and more.
- [Home](https://metrikmfg.com/): Metrik MFG is dedicated to making manufacturing operations, workflows, and processes easier for you, so you can focus on the bigger picture, save time, and build your dreams.
- [Privacy Policy](https://metrikmfg.com/privacy-policy/): Last updated: October 10, 2026.

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