---
product_id: 48689518
title: "Silverline External Micrometer 25mm (282378)"
brand: "silverline"
price: "11.79 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Silverline"
url: https://www.desertcart.com.om/products/48689518-silverline-external-micrometer-25mm-282378
store_origin: OM
region: Oman
---

# 0-25mm range with 0.01mm resolution Strong steel frame, corrosion-resistant Protective case included Silverline External Micrometer 25mm (282378)

**Brand:** silverline
**Price:** 11.79 OMR
**Availability:** ✅ In Stock

## Summary

> 📐 Measure Like a Pro, Own the Precision

## Quick Answers

- **What is this?** Silverline External Micrometer 25mm (282378) by silverline
- **How much does it cost?** 11.79 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/48689518-silverline-external-micrometer-25mm-282378)

## Best For

- silverline enthusiasts

## Why This Product

- Trusted silverline brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready for Action:** Comes with a protective case and calibration tool—stay sharp and ready for any project.
- • **Compact Powerhouse:** Lightweight 127g design fits perfectly in your toolkit or pocket for on-the-go precision.
- • **Effortless Accuracy Every Time:** Knurled thimble and ratchet stop deliver consistent, error-free measurements—eliminate guesswork.
- • **Precision that Commands Respect:** Achieve ultra-fine measurements with 0.01mm resolution—because details matter in your craft.
- • **Built to Last, Designed to Impress:** Robust alloy steel frame with corrosion-resistant finish ensures durability and a sleek professional look.

## Overview

The Silverline External Micrometer 25mm (282378) is a precision measuring tool crafted from corrosion-resistant alloy steel, offering a measurement range of 0-25mm with an impressive 0.01mm resolution. Lightweight and durable, it features a knurled thimble and ratchet stop for consistent, error-free readings. Packaged with a protective case and calibration tool, it’s the perfect budget-friendly micrometer for professionals demanding accuracy and reliability.

## Description

Shop Silverline External Micrometer 25mm (282378). Free delivery on eligible orders of £20 or more.

Review: Great budget micrometer - SUMMARY A great budget micrometer that suited my needs fine. I usually use a set of digital calipers for most of my measurements involved in handloading ammunition for target shooting, however, in one instance I needed something which had more precision than the set of calipers I had. Hence the purchase of this micrometer. It performed great and would recommend to anyone looking for a good budget micrometer. WHATS IN THE BOX - Cardboard sleeve - Plastic box - Micrometer - Double sided tool for zero-ing - (No instructions, so best to read up on Wikipedia if you're unsure how to use them) REVIEW The micrometer has all the typical features that you would expect on any old micrometer; easy to read scale, knurled thimble, ratchet for error free measurement* and lock nut. *Well, at least takes the human element out of it by applying the same compression on a surface TEST RESULTS I needed a device that would measure the external diameter of the neck of a loaded bullet, and from this dimension I can then work out how much I need to size my brass casing (to maintain neck tension) so it was critical that I have an accurate, precise measurement. Using some high quality brass cases (Lapua) I had loaded up 10 rounds also using high quality Lapua bullets. These high quality components have very repeatable measurements and should therefore provide a good test for the micrometer. Results as follows: 7.37mm, 7.39mm, 7.37mm, 7.38mm, 7.38mm, 7.38mm, 7.37mm, 7.37mm, 7.37mm, 7.38mm Range: 7.37mm - 7.39mm = 0.02mm (0.2902"-0.2909"=0.0007") For me, the accuracy was only required to three decimal places in inches (i.e. 0.290) but I am more than impressed with the results. I re-measured another 10 loaded rounds and found that a measurement of 7.39mm appeared only once so I'd be happy to say that this is more down to the brass thickness for that particular case, and not the tolerance of the micrometer. The reason for this measurement was that I didn't known which part I should order to re-size the brass to give neck tension; 0.288" or 0.289", which is the reason I wanted something so accurate for measurement. This device provided that level of accuracy needed and I am most pleased with it. I have received the re-sizing part, 0.288", and once I've fired those bullets and re-size them I will re-measure some cases as they should all have an outside neck diameter of precisely 0.288". Will update this review accordingly!
Review: Very accurate, good quality, VERY affordable. Nothing to dislike! - I still refuse to believe that this thing cost only a couple of pounds delivered. Has to be the measurement tool bargain of the century! QUALITY: According to the other reviews the quality may vary, but I must have been lucky and got a good sample. Overall finish is perfect, spindle has no wobble, thimble turns very lightly and smoothly (as long as the spindle lock is fully released... I'm still learning!), and rachet stop works perfectly. Free tip: Check wikipedia for great explanation of micrometer parts. ACCURACY: I needed this micrometer for a valve clearance job on my car, to measure the exact thicknesses of valve shims. The measurement range will be small, 4.25mm is the thickest shim available. I tested the accuracy by measuring thicknesses of single feeler gauge blades, or combinations of blades. All single blade (0.05mm to 1.00mm) measurements were accurate, micrometer showing +0.002mm to +0.003mm per blade, which I find a very good result for a micrometer costing well under 10 pounds. When measuring thicknesses of several blades together, the rachet stopped a bit too early, giving too high a reading. I presume this is more of an issue with me measuring several blades together rather than with the micrometer. This cannot really be avoided as the blades would need to sit completely flush with each other for the measurement to be accurate. When tightened a bit further with the thimble until tightness was about right (no gaps between blades and started feeling a bit more resistance), the reading was again off by just a couple of thousandths of mm. All in all, knowing that the micrometer reading is a tiny fraction too high but tne amount is constant, I can adjust my readings to get the exact thicknesses of shims down to just 0.001mm to 0.002mm - in other words, this super cheap micrometer will do its job nicely! ACCESSORIES: The micrometer came inside a plastic box. It will protect it from elements, but it only has some very thin padding inside. It could have had a bit more padding to stop the micrometer from moving. Also included was a calibration tool. There was no manual included. A small A4 size manual with descriptions of micrometer parts and how to use it, calibrate it and take care of it would have been nice. Luckily, there's internet. PRICE AND DELIVERY: What can I say. Seven quid with free next day delivery with desertcart Prime.

## Features

- Strong steel frame with a corrosion-resistant finish
- Range of 0 - 25mm with a resolution of 0.01mm
- Includes protective case

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000LFYJYM |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 43,900 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 28 in Outside Micrometres |
| Customer Reviews | 4.4 4.4 out of 5 stars (977) |
| Date First Available | 30 Nov. 2006 |
| Included Components | 1x External Micrometer 25mm |
| Item Package Quantity | 1 |
| Item Weight | 127 g |
| Item model number | 282378 |
| Manufacturer | SLTL4 |
| Material | Alloy Steel |
| Measurement Accuracy | 0.01mm |
| Number of Pieces | 1 |
| Part Number | 282378 |
| Power Source | Hand Powered |
| Product Dimensions | 14.5 x 3 x 7 cm; 127.01 g |
| Size | 25mm |

## Product Details

- **Brand:** Silverline
- **Material:** Alloy Steel
- **Measurement accuracy:** 0.01mm
- **Product dimensions:** 45L x 30W millimetres
- **Range:** 25 Millimeters

## Images

![Silverline External Micrometer 25mm (282378) - Image 1](https://m.media-amazon.com/images/I/511ctoMiy+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great budget micrometer
*by R***0 on 27 May 2015*

SUMMARY A great budget micrometer that suited my needs fine. I usually use a set of digital calipers for most of my measurements involved in handloading ammunition for target shooting, however, in one instance I needed something which had more precision than the set of calipers I had. Hence the purchase of this micrometer. It performed great and would recommend to anyone looking for a good budget micrometer. WHATS IN THE BOX - Cardboard sleeve - Plastic box - Micrometer - Double sided tool for zero-ing - (No instructions, so best to read up on Wikipedia if you're unsure how to use them) REVIEW The micrometer has all the typical features that you would expect on any old micrometer; easy to read scale, knurled thimble, ratchet for error free measurement* and lock nut. *Well, at least takes the human element out of it by applying the same compression on a surface TEST RESULTS I needed a device that would measure the external diameter of the neck of a loaded bullet, and from this dimension I can then work out how much I need to size my brass casing (to maintain neck tension) so it was critical that I have an accurate, precise measurement. Using some high quality brass cases (Lapua) I had loaded up 10 rounds also using high quality Lapua bullets. These high quality components have very repeatable measurements and should therefore provide a good test for the micrometer. Results as follows: 7.37mm, 7.39mm, 7.37mm, 7.38mm, 7.38mm, 7.38mm, 7.37mm, 7.37mm, 7.37mm, 7.38mm Range: 7.37mm - 7.39mm = 0.02mm (0.2902"-0.2909"=0.0007") For me, the accuracy was only required to three decimal places in inches (i.e. 0.290) but I am more than impressed with the results. I re-measured another 10 loaded rounds and found that a measurement of 7.39mm appeared only once so I'd be happy to say that this is more down to the brass thickness for that particular case, and not the tolerance of the micrometer. The reason for this measurement was that I didn't known which part I should order to re-size the brass to give neck tension; 0.288" or 0.289", which is the reason I wanted something so accurate for measurement. This device provided that level of accuracy needed and I am most pleased with it. I have received the re-sizing part, 0.288", and once I've fired those bullets and re-size them I will re-measure some cases as they should all have an outside neck diameter of precisely 0.288". Will update this review accordingly!

### ⭐⭐⭐⭐⭐ Very accurate, good quality, VERY affordable. Nothing to dislike!
*by J***I on 1 February 2014*

I still refuse to believe that this thing cost only a couple of pounds delivered. Has to be the measurement tool bargain of the century! QUALITY: According to the other reviews the quality may vary, but I must have been lucky and got a good sample. Overall finish is perfect, spindle has no wobble, thimble turns very lightly and smoothly (as long as the spindle lock is fully released... I'm still learning!), and rachet stop works perfectly. Free tip: Check wikipedia for great explanation of micrometer parts. ACCURACY: I needed this micrometer for a valve clearance job on my car, to measure the exact thicknesses of valve shims. The measurement range will be small, 4.25mm is the thickest shim available. I tested the accuracy by measuring thicknesses of single feeler gauge blades, or combinations of blades. All single blade (0.05mm to 1.00mm) measurements were accurate, micrometer showing +0.002mm to +0.003mm per blade, which I find a very good result for a micrometer costing well under 10 pounds. When measuring thicknesses of several blades together, the rachet stopped a bit too early, giving too high a reading. I presume this is more of an issue with me measuring several blades together rather than with the micrometer. This cannot really be avoided as the blades would need to sit completely flush with each other for the measurement to be accurate. When tightened a bit further with the thimble until tightness was about right (no gaps between blades and started feeling a bit more resistance), the reading was again off by just a couple of thousandths of mm. All in all, knowing that the micrometer reading is a tiny fraction too high but tne amount is constant, I can adjust my readings to get the exact thicknesses of shims down to just 0.001mm to 0.002mm - in other words, this super cheap micrometer will do its job nicely! ACCESSORIES: The micrometer came inside a plastic box. It will protect it from elements, but it only has some very thin padding inside. It could have had a bit more padding to stop the micrometer from moving. Also included was a calibration tool. There was no manual included. A small A4 size manual with descriptions of micrometer parts and how to use it, calibrate it and take care of it would have been nice. Luckily, there's internet. PRICE AND DELIVERY: What can I say. Seven quid with free next day delivery with Amazon Prime.

### ⭐⭐⭐⭐ Decent for the price
*by C***J on 30 September 2024*

It’s a micrometer for less than £15. Those expecting the quality of a brand like mitutoyo are frankly being delusional and unreasonable considering the price difference. This is a solid little measuring device that is fine for the DIYer, offering enough accuracy for measuring disc thickness etc.

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-21*