Mitutoyo Digimatic Holtest Three-Point Internal Micrometer Set, 4-8"/101.6-203.2mm - 468-980 The Mitutoyo Digimatic Holtest Three-Point Internal Micrometer Set (Model 468-980), spanning 4-8 inches (101.6-203.2mm), stands as a pinnacle of precision and durability. Boasting an interchangeable head set and titanium-coated measuring pins, this micrometer set excels in resilience against water, dust, and coolant fluid splashes with its IP65 protection level. The large LCD display, featuring a 7.5mm character height, ensures effortless measurement readings. With TiN-coated contact points for measuring blind holes and functions like zero-setting, data hold, and a ratchet stop for constant force, this set is tailored for diverse applications. Optional extension rods and setting rings provide added versatility, and the micrometer set is thoughtfully supplied in a fitted plastic case for models up to 100mm/4" and a wooden case for larger sizes. Backed by comprehensive technical data and functions like inch/mm conversion, the Mitutoyo Digimatic Holtest Three-Point Internal Micrometer Set is an indispensable tool for professionals requiring accurate measurements in a range of machining scenarios. These are three-point internal micrometers that offer you the following benefits: Interchangeable head set. Titanium-coated measuring pins give you excellent durability and impact resistance. They also have excellent resistance against water and dust (IP65 protection level), allowing you to use this product in machining situations that include splashing coolant fluid. Large LCD display with character height of 7.5mm enables you to read measurements easily. With setting rings and extensions. Features: TiN-coated contact points provide excellent durability and impact resistance and allow the instrument to measure to the bottom of a blind hole.(up to 100mm/4"models) Large LCD readout. Functions available: Presetting, Zero/ABS, power On/Off Data hold, Data out put, Error alarm, Battery replacement alarm. With Ratchet Stop for constant force. Can measure deep holes by attaching an Extension rod(optional). Setting rings for origin point setting are optional. Supplied in fitted plastic case up to 100mm / 4". Over 100mm / 4" supplied in wooden case. Technical Data: Accuracy: Refer to the list of specifications. Resolution: 0.001mm or .00005"/0.001mm (over 5" models: .0001"/0.001mm) Contact point: TiN-coating Measuring method: Three-point method Display: LCD Battery: SR44 (2 pcs.), 938882 Battery life: Approx. 8 months under normal use Function: Zero-setting, Data hold, Data output, Preset, inch/mm conversion (inch/mm models) Alarm: Low voltage, Counting value composition error This Gage Set must ship LTL Freight.