H-249 Heavy Duty Vernier Caliper Carbide Measuring Faces, Fine Adjustment, 0.02mm Precision Hoshing

H-249 Heavy Duty Vernier Caliper Carbide Measuring Faces, Fine Adjustment, 0.02mm Precision Hoshing

Industrial-grade heavy-duty vernier caliper with wear-resistant tungsten carbide measuring faces, available in 6 measuring ranges from 200mm to 1000mm, with standard and extended jaw options. Features precision fine adjustment mechanism, dual metric/imperial etched scales with 0.02mm/0.001" high resolution, and 4-in-1 OD, ID, depth and step measurement capability. Purely mechanical design requires no batteries, ideal for high-frequency CNC machining, toolmaking and harsh workshop inspection. Single-unit retail supported with no minimum order quantity.
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Description

The H-249 series carbide-tipped vernier caliper is a durable, workshop-grade dimensional measuring tool engineered for high-frequency daily use in demanding industrial environments. Its tungsten carbide measuring faces solve the core pain point of standard steel-jaw Calipers — rapid edge wear and calibration drift when measuring hard metal workpieces. Combined with a reinforced hardened stainless steel frame and precision fine adjustment mechanism, it delivers long-lasting accuracy and reliable performance in CNC machining shops, toolrooms and quality control departments where ordinary Calipers degrade quickly.
  1. Tungsten Carbide Measuring Faces for Extended Service Life
    All measuring jaw tips are inlaid with high-hardness tungsten carbide, delivering exceptional wear and scratch resistance. Compared with standard hardened steel jaws, carbide-tipped edges maintain sharp, parallel measuring surfaces 5 to 8 times longer under frequent use on steel, cast iron and abrasive materials. This drastically reduces calibration frequency and lowers long-term ownership cost for high-volume inspection stations.
  2. Precision Fine Adjustment Mechanism
    Equipped with a dedicated fine-adjustment carriage, operators can position the sliding jaw smoothly and accurately with the thumbwheel, avoiding overshoot and improving measurement consistency. This feature is especially valuable for tight-tolerance inspection and fine alignment with workpiece measuring surfaces.
  3. Dual Etched Scales with Multiple Resolution Options
    Precision-etched dual metric and imperial scales provide clear, wear-resistant graduations that will not fade over years of use. Multiple resolution options are available: 0.02mm / 0.05mm for metric, and 0.001" / 1/128" for imperial, to match different accuracy requirements and regional measurement habits.
  4. Wide Range of Sizes & Extended Jaw Configurations
    Six standard models cover measuring ranges from 200mm to 1000mm, each available with standard or extended jaws. Extended jaws — up to 200mm on larger models — enable deep-reach measurement of grooves, recessed cavities and thick-walled structures that are inaccessible to standard Calipers , greatly expanding application flexibility.
  5. 4-in-1 Versatile Measurement Functions
    A single caliper performs outside diameter (OD), inside diameter (ID), depth and step dimension measurements. The precision ground jaws ensure full, parallel contact with workpiece surfaces for trustworthy readings across all measurement modes.
  6. Fully Mechanical, Zero Battery Dependence
    Entirely mechanical with no electronic components, it operates reliably in dusty, oily, damp and high-vibration workshop conditions with zero downtime from dead batteries or circuit failure. It is a dependable workhorse for on-site measurement and production line inspection.

Core Retail Selling Points

✅ Zero minimum order limit, single-unit retail supported for individual machinists and high-frequency workshop restock
✅ Tungsten carbide measuring faces, 5–8 times longer service life than standard steel jaws
✅ Precision fine adjustment mechanism for smooth, accurate jaw positioning
✅ Dual metric/imperial etched scales, multiple resolution options (0.02mm / 0.05mm / 0.001" / 1/128")
✅ 6 measuring ranges from 200mm to 1000mm, with extended jaw options up to 200mm
✅ 4-in-1 measurement: outside diameter, inside diameter, depth and step dimensions
✅ Full hardened stainless steel construction, corrosion and wear resistant for heavy industrial use
✅ Purely mechanical design, no batteries required, reliable in harsh workshop environments
✅ 12-month retail warranty against manufacturing and accuracy defects

Standard Specification

Order No. Measuring Range Normal Jaw Length Available Long Jaw Lengths Scale Resolutions
H-249-525S 0 – 200mm 60mm 90mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-249-535S 0 – 300mm 60mm 90mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-249-550S 0 – 500mm 100mm 125mm / 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-249-555S 0 – 600mm 100mm 125mm / 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-249-560S 0 – 800mm 125mm 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-249-565S 0 – 1000mm 125mm 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"

Target Retail Buyers

CNC machining operators, tool and die makers, high-volume production QC inspectors, metal fabrication technicians, automotive parts manufacturing staff, mold manufacturing technicians, industrial maintenance engineers, vocational machining training facilities, small precision workshop owners.

Applications

CNC Machining

Ideal for CNC lathe, milling and machining center operations, ensuring high-precision dimensional control and reliable tool holding for mass production.

Quality Control Labs

Suitable for quality inspection departments and calibration labs, providing accurate measurement data to verify product compliance with ISO and industry standards.

Mold & Die Making

Perfect for mold and die workshops, where micron-level precision tools and gauges are essential for complex cavity machining and final inspection.

OEM/ODM Projects

Customizable solutions for OEM and ODM manufacturing partners, offering tailored measuring tools and CNC accessories to meet unique production requirements.

Automotive Manufacturing

Designed for automotive component production lines, ensuring consistent precision and durability in engine parts, transmission components and assembly processes.

Aerospace & Precision Engineering

Ideal for aerospace and defense manufacturing, where ultra-high precision instruments and reliable tool holders meet strict quality and safety requirements.

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