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Metal Fabrication Supplies Blog

  • From Twist Drills to Rotabroach Cutters - The Evolution of Hole Making
    Stephen A. Morse of East Bridgewater, Massachusetts invented the twist drill in 1861. They have remained the most common way of producing holes, up to this present day. The early drill bits were manufactured by producing two grooves opposite sides to each other in a round bar, the bar was then twisted to produce the flutes. Nowadays, the flutes of the drill bit are ground into the bar by rotating and passing the bar over a grind wheel which precision grinds the flutes.
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  • What is the best respirator for welding?
    When asking ‘what is the best respirator for welding and metal cutting?’ a number of factors need to be considered. But first we’ll give a bit of background. The fumes given off during welding or a hot cutting process is a varying mixture of airborne gases and very fine particles. Welding fumes are formed when the metal is heated above its boiling point and vapours condense in the atmosphere creating very fine, solid particulates. These particulates can be a mixture of metallic oxides, silicates and fluorides. If inhaled, they may cause ill health and are often dismissed or not correctly protected against. Welding fumes are recognised internationally and are classified as a possibly carcinogenic to humans should we be exposed to them for long or even regular short periods of time.
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  • What is Hand Arm Vibration Syndrome?
    Hand Arm Vibration Syndrome (HAVS) is a widespread recognised industrial disease which is affecting thousands of workers every day. It is a disorder which affects the blood vessels, nerves, muscles and joints of the hand, wrist and arm. It is normally caused by excessive, long-term exposure to working with tools that vibrate. 1 in 10 people who work regularly with vibrating tools may develop HAVS.
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