H-150B Heavy Duty Step Jaw Vernier Caliper 500mm–3000mm Large Range, Special Step Measuring Jaw, Optional Extended Long Jaws Hoshing

H-150B Heavy Duty Step Jaw Vernier Caliper | 500mm–3000mm Large Range, Special Step Measuring Jaw, Optional Extended Long Jaws Hoshing

Industrial heavy-duty mechanical vernier caliper with exclusive stepped measuring jaw design, constructed from rigid hardened stainless steel. Available in 8 measuring ranges spanning 500mm up to 3000mm, supplied with standard jaws and optional extra-long jaws up to 400mm for deep recess measurement. Dual metric/imperial precision-etched scales support multiple resolution options (0.02mm / 0.05mm / 0.001" / 1/128"). Equipped with fine adjustment sliding carriage for precise positioning, fully battery-free mechanical structure. Ideal for oversized part OD, ID and step dimension inspection in heavy machinery, structural steel fabrication, shipbuilding and large mold manufacturing. Single-unit retail supported with no minimum order quantity.
High Precision
ISO/CE Certified
Industrial Durability
OEM/ODM Support
Fast Global Delivery
Professional After-Sales
Inquire Now View Applications
Calipers
Products

Description

The H-150B series heavy-duty vernier caliper is an upgraded specialized large-size measuring tool differentiated by its unique stepped jaw profile, purpose-built for measuring step heights, shoulder dimensions and offset features on massive workpieces that conventional flat-jaw Calipers cannot tackle accurately. The thickened reinforced main beam eliminates bending and deflection at full extension, solving the rigidity and accuracy instability issues common to generic long-length Calipers . Combined with selectable extended long jaws and dual-unit multi-resolution scales, it complies with global engineering drawing standards and addresses complex deep-groove, recessed and stepped measurement challenges in heavy industrial production.
  1. Unique Step-Style Jaw Design for Specialized Step Measurement
    Its proprietary stepped jaw profile is the core upgrade from ordinary large Calipers . The offset jaw structure enables direct, reliable measurement of shoulder steps, flange thickness, stepped bore and protruding step dimensions, avoiding measurement errors caused by mismatched contact of flat jaws on stepped workpieces. Greatly simplifies inspection procedures for stepped shafts, machined shoulders and structural offset components.
  2. Eight Complete Large Measuring Range Configurations
    Eight standard models cover measuring capacities from 500mm to 3000mm, covering nearly all oversized component inspection demands in heavy industry. The entire caliper body is forged from high-grade hardened stainless steel with anti-glare satin chrome surface treatment, delivering excellent impact resistance, coolant/oil corrosion resistance and long-term dimensional stability for intensive daily workshop operation.
  3. Standard & Optional Extended Long Jaw Configurations
    Each model comes fitted with standard jaws, with upgraded extra-long jaws available as an option; maximum jaw depth reaches 400mm for the largest-range models. Extended long jaws penetrate deep cavities, thick-walled internal grooves and hard-to-access recessed features unreachable by standard-length jaws, greatly expanding application flexibility for large complex workpieces.
  4. Multi-Resolution Dual Metric & Imperial Etched Scales
    Scale graduations are precision permanently etched for wear resistance, offering multiple selectable resolutions: metric 0.02mm / 0.05mm, imperial 0.001" / 1/128". Compatible with both domestic and international engineering drawing specifications, crisp markings resist fading and abrasion after years of frequent heavy use.
  5. Fine Adjustment Sliding Mechanism for Stable Precise Positioning
    Outfitted with independent fine-adjustment carriage and dual locking screws, the slider runs smoothly with no side shake or backlash. Operators can slowly align the stepped measuring jaws against workpiece surfaces to prevent over-travel, improving measurement repeatability for tight-tolerance large-size dimensional inspection.
  6. Fully Mechanical Battery-Free Structure
    No electronic components or batteries required, performing reliably in dusty, oily, humid and high-vibration harsh workshop environments with zero risk of sudden measurement failure during critical quality checks. Supports four-in-one measurement: outer diameter, inner diameter, step dimension and depth dimension.

Core Retail Selling Points

✅ Zero minimum order limit, single-unit retail available for factory QC departments, maintenance teams and workshop stock replenishment
✅ Exclusive stepped jaw design, dedicated for accurate step height and shoulder dimension measurement
✅ 8 measuring ranges from 500mm to 3000mm to satisfy all large-scale component measurement requirements
✅ Reinforced hardened stainless steel beam, anti-deflection, anti-corrosion and impact-resistant for heavy-duty use
✅ Optional long jaws up to 400mm, suited for deep groove, internal cavity and hard-to-reach feature measurement
✅ Dual metric & imperial etched scales, multiple resolution options matching global blueprint standards
✅ Independent fine adjustment structure, smooth sliding positioning for consistent, precise readings
✅ Fully mechanical design, no battery dependence, adaptable to harsh oily/dusty workshop environments
✅ Anti-glare satin-chrome scale surface, easy visual reading and low human error rate
✅ Locking screw structure fixes sliding position for convenient off-part data recording
✅ 12-month retail warranty against manufacturing defects and accuracy deviation

Standard Specification Table

Order No. Measuring Range Normal Jaw Length Optional Long Jaw Lengths Available Resolutions
H-150B-550S 0 – 500mm 100mm 125mm / 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-555S 0 – 600mm 100mm 125mm / 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-560S 0 – 800mm 125mm 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-565S 0 – 1000mm 125mm 150mm / 200mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-570S 0 – 1500mm 200mm 250mm / 300mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-575S 0 – 2000mm 200mm 250mm / 300mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-580S 0 – 2500mm 300mm 350mm / 400mm 0.02mm / 0.05mm / 0.001" / 1/128"
H-150B-585S 0 – 3000mm 300mm 350mm / 400mm 0.02mm / 0.05mm / 0.001" / 1/128"

Target Retail Buyers

Heavy machinery manufacturing QC inspectors, structural steel & welding inspection technicians, shipbuilding quality control personnel, large mold processing technicians, aerospace oversized component inspectors, industrial equipment maintenance engineers, construction engineering measurement specialists, heavy equipment repair workshops.

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.

Hot Products