Mitutoyo TM Series Toolmakers’ Microscopes

Price range: $6,850.00 through $9,150.00

The Mitutoyo TM Series Toolmakers’ Microscopes are well-suited for measuring dimensions and angles of machined metals with exceptional accuracy. Featuring bright LED illumination, superior optical performance, and compact design ideal for shop floor use. Available in multiple configurations with various measurement ranges and optional digital measurement capabilities.

in short, the Mitutoyo Toolmaker’s Microscope transforms your microscope into a measurement laboratory, letting you move beyond “seeing” to quantifying — with precision trusted by scientists and professionals across disciplines.

Description

Mitutoyo Toolmaker’s Microscopes are optical measuring microscopes with a precision X-Y stage and rotatable protractor that let you view and measure tiny features on parts under reflected or transmitted light. Beyond magnification, they give micrometer/DRO readings and reticle tools to quantify lengths, hole centers, pitches, radii, and angles with high accuracy. They’re great for QC/inspection and toolroom work—checking cutting tools, punches/dies, gears and threads, and verifying small part geometry against drawings or tracking tool wear.

Optional Accessories

Part No. Description
176-115 10× eyepiece (field number 13 mm)
176-116 15× projection lens set (standard accessory)
176-117 20× eyepiece (field number 10 mm)
176-138 Objective, 2× (WD 67 mm, NA 0.07) — standard accessory
176-139 Objective, 5× (WD 33 mm, NA 0.10)
176-137 Objective, 10× (WD 14 mm, NA 0.14)
164-163 Digimatic micrometer head (range 50 mm; reading 0.001 mm)
164-164 Digimatic micrometer head (range 2 in / 50 mm; reading 0.00005 in / 0.001 mm)
152-390 Micrometer head for X-axis (range 25 mm; reading 0.005 mm)
152-389 Micrometer head for Y-axis (range 25 mm; reading 0.005 mm)
152-392 Micrometer head for Y-axis (range 1 in; reading 0.0001 in)
152-391 Micrometer head for X-axis (range 1 in; reading 0.0001 in)
611201-531 Rectangular gauge block (1 in)
611202-531 Rectangular gauge block (2 in)
176-204 Dial indicator attachment for 2-axis measurement
959149 SPC cable (2 m) for Digimatic micrometer head

TM-Series at a glance

What they are: compact optical measuring microscopes for small parts. You view the part through an eyepiece and read length/angle using a movable XY stage (and, if fitted, digital micrometer heads).

Who they’re for: machinists, toolmakers, QA techs checking edges, pitches, angles, thread forms, hole locations, and small profiles.

Two sizes

  • TM-505B – travel ~ 50 × 50 mm (space-saving bench unit).
  • TM-1005B – travel ~ 100 × 50 mm (more X range for longer parts).

Why Choose a Mitutoyo Toolmaker’s Microscope?

The Mitutoyo Toolmaker’s Microscope is more than a microscope — it’s a measurement-grade instrument built for professionals who need accuracy, repeatability, and versatility in their work.

For Entomologists

  • Capture precise morphometric data: measure body parts, wing venation, antennal segments, and genitalia structures with micron-level accuracy.

  • Switch easily between reflected and transmitted light, ideal for both opaque and transparent insect specimens.

  • Rely on stable, repeatable results for taxonomic descriptions, species identification, and morphometric studies.

For Scientists & Researchers

  • Perform quantitative analysis across fields such as zoology, botany, materials science, and microengineering.

  • Measure lengths, radii, angles, hole centers, and pitches directly through the microscope with digital readoutsthat ensure consistency.

  • Benefit from Mitutoyo’s precision stages and optics, designed to handle repeated, high-volume measurements with ease.

For Medical & Clinical Applications

  • Ideal for histology, pathology, and biomedical engineering where reliable measurements of tissue samples, implants, or microstructures are required.

  • Ensure compliance with professional standards thanks to traceable, industry-tested accuracy.

  • Simplify documentation with digital readouts that eliminate estimation errors common in traditional optical microscopes.

Key Advantages

  • Sub-micron accuracy with smooth X–Y stage movement and digital micrometer heads.

  • Dual illumination (transmitted and reflected light) for flexible imaging.

  • Versatile measurement tools for lenticular, linear, angular, and radius features.

  • Research-grade build quality, trusted by universities, laboratories, and industrial R&D facilities worldwide.

What the parts do (and why they matter)

Optics & viewing

Eyepiece with Protractor

A built-in angle scale lets you read angles directly (e.g., chamfers, gear pressure angles). Rotate to align the crosshair with your feature, then read degrees. Easier and faster than trigonometry from XY moves.

Interchangeable Eyepieces (10× / 15× / 20×)

Choose field of view vs. detail. Higher power = finer edge pick; lower power = wider scene.

Objectives (2× standard; 5× / 10× optional)

Swap front lenses to change total magnification. Lower power keeps a long working distance (more room over the part). Higher power helps on fine edges and small features.

Illumination (how the part is lit)

Transmitted LED (below the stage)

Backlights the part to make a crisp silhouette—perfect for dimensional edges, hole diameters, and pitch. A green filter improves edge contrast.

Oblique / Incident LED (from above)

Rakes light across the surface so scratches, burrs, and texture pop. Great complement to the silhouette view.

Optional Circular LED Ring

Even 360° top light when a single lamp makes harsh shadows—useful on curved or reflective parts.

Stage, focus, and holding the part

XY Glass Stage with Fine Feed

Moves the work under the optics. The fine micrometers are the measurement axes; a quick-release lets you slide between features fast, then lock for fine positioning.

Z Focus (coarse/fine)

Brings the edge into best focus for sharp measurement. Long-WD objectives keep tools/fixtures clear of the lens.

Workholding Options

  • V-block with clamp – pins, screws, small shafts.
  • Swivel centers – support between centers without deflection.
  • Rotary table (fine-feed) – rotate the work precisely to measure angles, helix leads, or pitch circles.
  • General holder/clamp – secures irregular parts.

Reading measurements

Analog stage micrometers (standard)

Read X/Y movement directly from the stage heads for lengths, hole spacing, etc.

Digimatic Micrometer Heads (optional)

Replace the standard heads with digital in/mm readouts (and data output). Speeds inspection, reduces reading errors, and simplifies recording.

Dial-indicator Z attachment (optional)

Adds simple height/step checks along Z using a contact indicator or linear gauge.

How to choose quickly

Pick your travel size

  • Mostly small parts → TM-505B (50 × 50 mm).
  • Longer pieces / more XY room → TM-1005B (100 × 50 mm).

Choose your magnification set

  • Start with 2× objective + 15× eyepiece for general work (~30× total).
  • Add 5× (and optionally 10×) for smaller features; keep 10× or 20× eyepieces for when you need a closer look.

Match lighting to the task

  • Dimensions/edges → Transmitted LED.
  • Surface flaws/burrs → Oblique LED or ring light.
  • Polished/curved parts → ring light helps keep reflections even.

Decide on readout

  • Occasional checks → standard micrometer heads are fine.
  • Frequent/recorded checks → Digimatic heads (digital readout + data export).

Add the right fixturing

  • Round parts → V-block or centers.
  • Angle work / helix features → rotary table.
  • Small irregulars → holder with clamp.

Quick glossary (shop-floor terms)

  • Working distance (WD): clearance from lens to part—more WD is safer and easier for fixturing.
  • Transmitted vs. incident light: backlight for silhouettes vs. top light for surface detail.
  • Protractor eyepiece: rotating scale in the eyepiece that lets you read angles directly.
  • Digimatic: Mitutoyo’s digital readout/output standard for fast, error-free recording.
  • Ring light: shadow-free top illumination with an LED ring around the objective.
  • Rotary table: turn the part under the optics for exact angle alignment or pitch/lead checks.

Additional information

Model

TM-1005B, TM-1005B with Digimatic, TM-505B, TM-505B with Digimatic

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