Micro Drill Analyzing Microscope

September 13, 2013

A new $495 Micro Drill Analyzing Microscope from Titan Tool Supply Inc. inspects the geometry, finish and accuracy of new and resharpened miniature carbide drills as small as 18" in diameter. Ideal for inspecting the quality of drills used in micromanufacturing and microelectronics, it provides a single-purpose, low-cost alternative to optical comparators and toolmakers microscopes, which entail a significant amount of setup time, according to the company.

Titan Tool's Model MDGA features a 30X magnification lens with a special reticle, two-position viewing, and 360-degree rotation of the drill in a precision collets holder to allow for complete inspection without refocusing or other adjustments. A travel rack and pinion brings the drill into focus.

The new Model MDGA analyzer from Titan Tool enables the user to inspect:

Point Centrality


Back Taper

Point Angle

Primary Relief Angle

Secondary Relief Angle

Web Taper and Web Thickness

Chisel Edge Angle

Lip Height

Cutting Drill Edge Irregularities and Drill Irregularities

Drill Point Finish

Body-to-Shank Concentricity

The new Titan Micro Drill Geometry Analyzer was designed so that two different views in two different planes of the drill can be inspected without changing setup. View one inspects the side of the drill, capturing all angles and most other adjustments. View two inspects the end of the drill to capture width, thicknesses, flare and other factors. The two different views are obtained by rotating the drill holding fixture 90 degrees on its own axis.

The new inspection tool measures 9-½" x 1-½" x 2" and weighs 1-lb., 6-oz. It is equipped with two 4mm-dia. Allen head screws for mounting the microscope in a bracket holder, if desired. Shank drills smaller than 18" in diameter can be inspected if a spacer (not provided) is used.

Related Glossary Terms

  • fixture


    Device, often made in-house, that holds a specific workpiece. See jig; modular fixturing.

  • point angle

    point angle

    Included angle at the point of a twist drill or similar tool; for general-purpose tools, the point angle is typically 118°.

  • relief


    Space provided behind the cutting edges to prevent rubbing. Sometimes called primary relief. Secondary relief provides additional space behind primary relief. Relief on end teeth is axial relief; relief on side teeth is peripheral relief.

  • shank


    Main body of a tool; the portion of a drill or similar end-held tool that fits into a collet, chuck or similar mounting device.

  • web


    On a rotating tool, the portion of the tool body that joins the lands. Web is thicker at the shank end, relative to the point end, providing maximum torsional strength.