DX, Quoting & Inventory Guide for Machine Shops
From faster quoting and material inventory to using subsidies — practical know-how you can apply on the shop floor.
How to Graduate From Excel for Material Inventory (For Machine Shops)
Drop memory-and-notebook inventory and move to a system that prevents material shortages at order time. Steps to migrate to the cloud.
Using Japan's IT Subsidy to Adopt Production Management Software (2026)
Use a subsidy to cut software adoption costs. The basic application flow and the points small shops should watch for, explained clearly.
Machining Tolerance Tables (General Tolerances, Fits, IT Grades)
Terms, a general-tolerance table, fits and IT grades, and how to read tolerances on a drawing (±, H7). Machining tolerances explained clearly.
Mechanical Drawing Symbols (Dimension & Geometric Tolerance, Explained)
Dimensional symbols φ, R, C..., geometric tolerance symbols, datums, and reading a feature control frame. Mechanical drawing symbols with examples, explained clearly.
What Is Surface Roughness? (Ra vs Rz and Reading the Symbols)
Ra vs Rz, the triangle marks vs Ra, reading the surface texture symbol, and typical roughness by process. Surface roughness basics explained clearly.
How to Use and Read a Micrometer (0.01mm Measurement, with Examples)
Types and parts, reading to 0.01mm with worked examples, zero adjustment, and common errors with fixes. A complete guide to using a micrometer.
How to Use a Bore Gauge (Cylinder Gauge) for Inside Diameters
Components, selecting the rod, setting zero, rocking to find the minimum, checking roundness/taper, and common errors. A detailed guide to using a bore gauge.
How to Use and Read a Vernier Caliper (0.05mm Scale, with Examples)
The parts, measuring OD/ID/depth/step, reading the 0.05mm vernier scale with worked examples, and common errors with fixes. A complete guide to the vernier caliper.
Common Metal Materials: Traits and How to Choose (SUS304, A5052, S45C, with Density)
Compare traits, density, machinability, and uses of SUS304, A5052, S45C, SS400, and free-cutting brass. How to choose and machinability cautions, explained.
Threads and Tapping Basics (Metric Threads & Tap Drill Chart)
Metric thread naming and pitch, a tap drill chart, through vs blind holes, tap types, and tapping tips. Thread and tapping basics explained clearly.
Heat Treatment Basics (Quenching, Tempering, Annealing, Normalizing)
Quenching/tempering/annealing/normalizing, case hardening, hardness HRC, treatable materials, and impact on sequence and distortion. Heat treatment basics explained.
Grinding Basics (Surface, Cylindrical, Internal) and When to Use It
Surface/cylindrical/internal/centerless grinding, choosing a wheel, why it's accurate, why it finishes after heat treatment, and grinding-burn cautions. Grinding basics explained.
Milling vs Turning (Lathe) — Uses and Machine Types Explained
What rotates, the operations each performs, machine types (NC lathe, MC, multitasking), and how to choose. Milling vs turning, explained clearly.
Surface Treatment Basics (Plating, Anodizing, Black Oxide)
The purpose and materials of plating, anodizing, black oxide, painting; the dimensional effect of coating thickness; and tips. Surface treatment basics explained.
Cutting Tool Basics (End Mills, Inserts, Drills) — Types and How to Choose
End mills (shapes, flute count), lathe inserts, drills, carbide vs HSS, coatings, and points by workpiece. Cutting tool basics and how to choose, explained.
How to Read a Three-View Drawing (Third-Angle: Front, Top, Side)
Third-angle vs first-angle projection, view layout, line types, a step-by-step way to visualize the 3D shape, and common pitfalls. Reading three-view drawings.
Measurement Error and Calibration Basics (Measuring Accurately)
Systematic vs random error, causes, calibration with gauge blocks and traceability, and tips for accuracy. Measurement error and calibration basics explained.