---
product_id: 155668294
title: "– Universal Step Wrench with Inner Square 1/2\" 5-Stage for Sanitary & radiators by WIESEMANN 1893 I 81116"
brand: "wiesemann 1893"
price: "£13.42"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/155668294-universal-step-wrench-with-inner-square-1-2-5-stage
store_origin: GB
region: Great Britain
---

# 5-step multi-size fit 1/2" internal square drive Q-30 chrome vanadium steel – Universal Step Wrench with Inner Square 1/2" 5-Stage for Sanitary & radiators by WIESEMANN 1893 I 81116

**Brand:** wiesemann 1893
**Price:** £13.42
**Availability:** ✅ In Stock

## Summary

> 🔩 Elevate your toolkit with precision and power — the wrench that means business.

## Quick Answers

- **What is this?** – Universal Step Wrench with Inner Square 1/2" 5-Stage for Sanitary & radiators by WIESEMANN 1893 I 81116 by wiesemann 1893
- **How much does it cost?** £13.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/155668294-universal-step-wrench-with-inner-square-1-2-5-stage)

## Best For

- wiesemann 1893 enthusiasts

## Why This Product

- Trusted wiesemann 1893 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tilt-Free Design:** Special step wrench geometry prevents tilting on nipples and screw connections, ensuring flawless installation.
- • **Direct 1/2" Square Drive:** Seamlessly mounts on any 1/2" ratchet—no adapters, no hassle, just pure efficiency.
- • **Precision Multi-Size Fit:** Five distinct wrench steps (3/8" to 1-1/4") cover all your radiator and sanitary needs without swapping tools.
- • **Premium Q-30 Steel Build:** Crafted from high-hardness chrome vanadium steel for unmatched durability and dimensional accuracy.
- • **Legacy of German Craftsmanship:** Backed by WIESEMANN 1893’s century-old tradition, blending classic quality with modern performance.

## Overview

The Universal Step Wrench by WIESEMANN 1893 is a polished, 5-step multi-size tool engineered from premium Q-30 chrome vanadium steel. Designed for sanitary and radiator applications, it features a direct 1/2" internal square drive for adapter-free ratchet compatibility and a unique anti-tilt design for secure fastening. Perfect for professionals and DIY enthusiasts seeking reliable German craftsmanship in a compact 220g package.

## Description

Universal Step Wrench with Inner Square 1/2" 5-Stage for Sanitary & radiators by WIESEMANN 1893 I 81116

## Features

- CONTENT - Step Key with 5 steps 3/8, 1/2, 3/4, 1-1/4 inches, 21 mm and continuous groove.
- APPLICATION - Installation and removal of radiator valve, return fitting, tap extension, thermostat, drain fitting. Due to the special design of the step wrench, no tilting in nipples and screw connections is possible.
- DRIVE - Square drive 12.5mm (1/2 inch) internal. Direct 1/2" square drive eliminates the need for an adapter. The bolt wrench can be directly mounted on a 1/2" ratchet.
- MATERIAL - The article is made throughout of our Q-30 steel. The quality grade Q-30 is a chrome vanadium steel for optimal dimensional accuracy and high hardness values.
- WIESEMANN 1893 - quality tools for DIY enthusiasts and tradesmen. With over one hundred years of tool tradition, Wiesemann is one of the oldest producers of tools in Germany. WIESEMANN 1893 represents traditional German quality with modern online distribution.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | THE FABELHAFT GROUP |
| Part Number | 81116 |
| Package Dimensions | 15.8 x 12.2 x 6.9 cm; 220 g |
| Item model number | 81116 |
| Size | 7 |
| Finish | Polished |
| Material | Chrome Vanadium Steel |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Head Style | Square |
| Compatible fastener range | 0.5 inches |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | Lithium |
| Item Weight | 220 g |

## Product Details

- **Brand:** WIESEMANN 1893
- **Item length:** 3.18 Centimetres
- **Material:** Chrome Vanadium Steel
- **Finish type:** Polished
- **Number of pieces:** 1

## Images

![– Universal Step Wrench with Inner Square 1/2" 5-Stage for Sanitary & radiators by WIESEMANN 1893 I 81116 - Image 1](https://m.media-amazon.com/images/I/61xBcaau4mL.jpg)

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-23*