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What is a removable scraper blade?


What is a removable scraper blade?

  Shop for Engineer’s Scrapers  
  Scraper with removable blade tip, removable scraper blade  

There are several advantages to having a scraper with removable, easily replaceable blades.


As it takes less time to change a blade than sharpen one, a replaceable blade enables you to complete all of your scraping and then sharpen the blade at another time. This is particularly useful if you’re scraping a workpiece away from your workshop and don’t have a grinding disc available to sharpen blades. 


What are replacement scraper blades made of?

  Replacement scraper blades  

Replacement scraper blades are made from one of two types of material: carbide or high speed steel (HSS).


Carbide, or tungsten carbide to give its full name, is much harder than HSS, so blades made of it can last up to ten times as long before they need sharpening.


The two main disadvantages of carbide scraper blades are that they can only be sharpened with a diamond grinding disc wheel, and cost more than HSS blades.


How are scraper blades fitted to the shaft?

  Different scraper blade attachment methods, hollow shaft scraper, metal clamp scraper blade clip, recessed allen key bolt clamping scraper blade  

There are several ways that scraper blades can be fitted to the shaft of a scraper. Different manufacturers use different methods, but the three main ways are:

  1. A metal clamp/clip that holds the blade to the shaft of the scraper 

  2. A recessed Allen key bolt that screws to clamp the blade to the shaft 

  3. A hollow shaft that the blade clips into


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