Product Description
468-989 Mitutoyo Digimatic Holtest Three-Point Internal Micrometer Set: 2-3″/50.8-76.2mm
The Mitutoyo 468-989 Digimatic Holtest Three-Point Internal Micrometer Set has the following specifications:
- Range: 2-3″/50.8-76.2mm
- Resolution: .00005″/.001mm
- Complete Unit Set
The Mitutoyo Digimatic Holtest internal micrometer utilizes three anvils and contact points for self-centering, precision measurements of the inside dimensions of bores. The 468-989 Mitutoyo Digimatic Holtest digital internal micrometer set features self-centering anvils evenly spaced at 120° with contact points coated in Titanium Nitride (TiN) to provide accurate, sensitive measurements that are highly durable. Precision-machined gears ensure reliable, repeatable measurements that are shown on a large, easy-to-read LCD display in an impact and water resistant housing. The holtest’s ratchet stop mechanism provides a constant measuring force on the hardened-steel spindle to ensure accurate, even measurements.
Features:
- Available in Metric and Inch/Metric models
- Optional extension rod allows for measuring deep holes
- SPC output function allows for quick and easy data management in real time
- Functions include Zero/ABS Setting, Data Hold, Data Output, Function Lock, 2 Presets, and inch/mm conversion (on inch/metric models only)
- Alarm: Low Voltage, Counting Value Composition Error, Battery Replacement
- Scale on thimble and sleeve is laser etched for easier reading in all conditions
- IP65 protection permits use in environments exposed to cutting oil, dust, etc.*
- Holtests up to 4″/100mm diameter measurements supplied in a fitted plastic case
- Holtests over 4″/100mm diameter measurements supplied in a wooden case
To watch a video on the Mitutoyo 468-989Â Digimatic Holtest Three-Point Internal Micrometer Set: Click Here
Technical Data:
- Contact point: tin-coating
- Measuring method: Three-point method
- Display: LCD
- Battery: SR44
- Battery life: Approx. 8 months under normal use
This Digimatic Holtest Set is the “complete unit” style. There is a readout for each of the three individual heads included in this set so the operator does not need to interchange or swap out the different measuring heads.
The Mitutoyo 468-989 Digimatic Holtest Bore Gage/Internal Micrometer set includes the following:
- Digimatic Holtest: 2.0-2.5″/50.8-63.5mm
- Digimatic Holtest: 2.5-3.0″/63.5-76.2mm
- 177-315 Setting Ring: 2.5″
Mitutoyo Digimatic Holtest Three-Point Internal Micrometers: Inch/Metric:
Complete Unit Sets:
- 468-986 Digimatic Holtest Internal Micrometer Set: .275-.500″/6.925-12.7mm
- 468-987 Digimatic Holtest Internal Micrometer Set: .500-1.00″/12.7-25.4mm
- 468-988 Digimatic Holtest Internal Micrometer Set: 1-2″/25.4-50.8mm
- 468-989 Digimatic Holtest Internal Micrometer Set: 2-3″/50.8-76.2mm
- 468-990 Digimatic Holtest Internal Micrometer Set: 3-4″/76.2-101.6mm
Interchangeable Head Sets:
- 468-976 Digimatic Holtest Internal Micrometer Set: .275-.500″/6.925-12.7mm
- 468-977 Digimatic Holtest Internal Micrometer Set: .500-.800″/12.7-20.32mm
- 468-978 Digimatic Holtest Internal Micrometer Set: .800-2.00″/20.32-50.8mm
- 468-979 Digimatic Holtest Internal Micrometer Set: 2-4″/50.8-101.6mm
- 468-980 Digimatic Holtest Internal Micrometer Set: 4-8″/101.2-203.2mm
Individual Sets:
- 468-261 Digimatic Holtest Internal Micrometer: .275-.350″/6.985-8.89mm
- 468-262 Digimatic Holtest Internal Micrometer: .350-.425″/8.89-10.795mm
- 468-263 Digimatic Holtest Internal Micrometer: .425-.500″/10.795-12.7mm
- 468-264 Digimatic Holtest Internal Micrometer: .500-.650″/12.7-16.51mm
- 468-265 Digimatic Holtest Internal Micrometer: .650-.800″/16.51-20.32mm
- 468-266 Digimatic Holtest Internal Micrometer: .800-1.00″/20.32-25.4mm
- 468-267 Digimatic Holtest Internal Micrometer: 1.00-1.20″/25.4-30.48mm
- 468-268 Digimatic Holtest Internal Micrometer: 1.20-1.60″/30.48-40.64mm
- 468-269 Digimatic Holtest Internal Micrometer: 1.60-2.00″/40.64-50.8mm
- 468-270 Digimatic Holtest Internal Micrometer: 2.00-2.50″/50.8-63.5mm
- 468-271 Digimatic Holtest Internal Micrometer: 2.50-3.00″/63.5-76.2mm
- 468-272 Digimatic Holtest Internal Micrometer: 3.00-3.50″/76.2-88.9mm
- 468-273 Digimatic Holtest Internal Micrometer: 3.50-4.00″/88.9-101.6mm
- 468-274 Digimatic Holtest Internal Micrometer: 4-5″/101.6-127mm
- 468-275 Digimatic Holtest Internal Micrometer: 5-6″/127-152.4mm
- 468-276 Digimatic Holtest Internal Micrometer: 6-7″/152.4-177.8mm
- 468-277 Digimatic Holtest Internal Micrometer: 7-8″/177.8-203.2mm
- 468-278 Digimatic Holtest Internal Micrometer: 8-9″/203.2-228.6mm
- 468-279 Digimatic Holtest Internal Micrometer: 9-10″/228.6-254mm
- 468-280 Digimatic Holtest Internal Micrometer: 10-11″/254-279.4mm
- 468-281 Digimatic Holtest Internal Micrometer: 11-12″/279.4-304.8mm
The Mitutoyo Digimatic Internal Micrometers have been one of the most commonly used three-point bore gages in the industry for over 15 years now. The easy to use electronics on the digimatic readout are simple enough for anyone to master in a matter of minutes. Each of the digimatic three-point internal micrometers has a ratchet stop which will provide better repeatability among operators. These internal micrometers are accurate with great repeatability and are highly recommended from Higher Precision.
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