Precision Inside Calipers for Marine & Industrial Internal Measurements

Introducing our high-quality inside calipers, an essential measuring tool for marine engineers, shipbuilders, and maintenance professionals. Inside calipers are specifically designed to determine the internal dimensions of bores, cylinders, pipe diameters, and other recessed areas where standard measuring tools cannot reach. Their precision-ground tips ensure minimal deviation, allowing you to transfer accurate readings directly to a micrometer or vernier caliper for reliable measurements.

Crafted from durable hardened steel, these calipers are built to withstand the demanding environment of marine workshops, ship decks, and engine rooms. The spring-loaded mechanism provides consistent pressure, while the adjusting screw allows for fine, controlled movement and secure locking. Available in multiple sizes, these inside calipers are a versatile addition to any tool chest, offering dependable performance for both small-scale precision work and larger industrial measurement tasks.

Key Features

Technical Specifications

SpecificationDetail
Product TypeInside Calipers
Measurement TypeInternal Dimensions (Bore, Hole, Gap)
MaterialHardened Steel
Available Sizes6" (150mm), 8" (200mm), 10" (250mm), 12" (300mm)
Adjustment MechanismScrew-driven with Locking Feature
Jaw TypeFlat, Precision-Ground Contact Points
WeightVaries by size, approx. 200–500g
ComplianceDesigned for marine/industrial use

Frequently Asked Questions

How do I use inside calipers?

To measure an internal dimension, adjust the calipers to fit snugly inside the bore or gap, then lock the setting using the adjustment screw. Carefully withdraw the calipers and measure the distance between the contact points with a micrometer or vernier caliper for a precise reading.

What can I measure with inside calipers?

Inside calipers are used to measure internal widths, hole diameters, bores, cylinders, and pipe diameters. They are ideal for checking engine cylinder wear, bearing housings, and other confined spaces.

Are inside calipers accurate?

When used correctly with a calibrated micrometer, inside calipers can provide highly accurate readings. The precision-ground jaw tips and secure locking mechanism help minimize measurement error.

What sizes are available?

We offer inside calipers in sizes from 6" (150mm) to 12" (300mm). Choose a size that fits the diameter of the opening you need to measure for best results.

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