07/09/2026
DataMet 3-point ball contacts Pistol Grip Bore Gauge
Standard resolution is 0.001 mm. The measuring head uses Ø4 mm ball contacts, providing localized contact with the bore surface rather than broad measuring faces.
https://microtech.tools/product/datamet-3-point-ball-contacts-pistol-grip-bore-gauge/
The electronics are protected to IP65. Standard depth configuration varies with measuring range, while optional extensions provide substantially greater reach, with configurations up to 5 m depth.
Computerized DataMet Functions
The computerized MICS/DataMet system integrates measurement, visualization, tolerance control and data management directly into the bore gauge.
Functions include:
Analog scale
Analog black scale
Comparator scale
Digital scale
Color GO / NOGO indication
MAX / MIN / RANGE
PRESET
FORMULA mode
TIMER
Temperature compensation
Linear correction
Resolution selection
Display rotation
Connection-status indication
Memory manager for 50,000 values
Statistics mode
Memory-data transfer
These functions allow the operator to evaluate a bore directly on the instrument instead of recording individual readings manually for later comparison. MAX/MIN and RANGE functions are particularly useful when checking diameter variation at different positions inside the bore.
Connectivity & Data
The gauge supports four data-transfer modes:
Wireless transfer to the MDS app
Wireless HID
Wireless HID + MAC
USB HID
The MDS application supports Windows, Android, iOS and macOS.
A USB-C data/charging socket is used for wired communication and charging the integrated 500 mAh rechargeable Li-Pol battery.
MODBUS RTU is optional, using an RS-485 four-wire industrial interface with 5–24 V, GND, A and B connections. This configuration is intended for integration into industrial measurement and data-acquisition systems rather than standalone manual inspection only.
Where is it used and what tasks does it solve?
The DataMet pistol-grip bore gauge is designed for internal features where ordinary caliper jaws or external micrometers cannot directly reach or correctly contact the measured diameter.
Typical measurement tasks include:
Internal bore diameter → contact must be made inside the cylindrical surface → 3-point Ø4 mm ball contacts engage the bore at three locations.
Bores positioned below the component surface → normal handheld instruments have insufficient reach → extended gauge geometry and optional depth extensions provide access deeper into the component.
Diameter checks at several depths → dimensional variation must be compared along the bore → MAX/MIN/RANGE functions capture and evaluate changing readings.
Repeated bore inspection → manual recording creates additional handling → 50,000-value memory and wireless or USB transfer store and send measurement results electronically.
Tolerance inspection → the operator must immediately determine whether a measured diameter is acceptable → color GO/NOGO and comparator displays provide direct limit evaluation.
Deep internal features → conventional short bore gauges cannot reach the measurement position → optional extensions increase measurement depth up to 5 m.
What problem does it solve?
Internal diameters combine two practical measurement difficulties: the measuring surface is enclosed inside the part, and the required measurement point can be far from the opening.
A conventional caliper can measure accessible internal dimensions, but its jaws become unsuitable when the required contact position is deep inside a bore or when stable multi-point contact is required.
The DataMet bore gauge solves this with a 3-point ball-contact head mounted on a pistol-grip measuring system. The head reaches the internal surface while the computerized indicator provides the measured value, tolerance status and measurement statistics.
For inspection at substantial depth, optional extensions move the measuring head farther into the bore while the display and operating controls remain accessible to the operator.
How does it work?
The appropriate measuring range is selected for the bore being inspected. The 3-point measuring head is inserted into the bore until the contacts reach the required measurement position.
The three Ø4 mm ball contacts engage the internal cylindrical surface. Their displacement is converted into the bore measurement and displayed by the DataMet indicator.
The operator can read the result as a digital value or use analog/comparator visualization. GO/NOGO limits can be applied for tolerance inspection, while MAX/MIN/RANGE functions can be used when comparing readings as the measuring position changes.
Results can then be stored in the internal memory or transferred wirelessly or through USB HID to an external system.
