What are the different types of screw and bolt extractor?
What are the different types of
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The types of screw and bolt extractors available are:
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Straight fluted extractors and mini straight fluted extractors |
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The straight fluted extractor is used to efficiently remove studs, screws and bolts. A mini straight fluted extractor can be used in hand screwdrivers with a hexagonal drive.
Choose the straight fluted extractor to remove a variety of screw, bolts and studs. The mini straight fluted extractors should be used for removing broken, damaged or embedded screws from metal, wood and ceramic. |
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A straight fluted extractor can be turned clockwise or anti-clockwise to bite into the damaged screw or bolt to remove right or left-hand threads. | |||
Spiral fluted extractors |
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This type of extractor removes screws and studs by fitting into a pre-drilled hole in the broken, damaged or embedded fastener, and rotating anti-clockwise.
Choose this type of extractor when you are mainly extracting screws, however, the spiral fluted extractor can also remove studs. |
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The spiral fluted extractor is drilled into the hole, the edges of which then grip the extractor, allowing the fastener to be removed. | |||
Micro spiral fluted extractor with drill out ends |
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This is the small (micro) version of the spiral fluted extractor that enables the user to use both ends.
Micro extractors are suitable for electronic, precision equipment and for use in the medical industry because of their hardened steel design and the size of screws and bolts they are able to extract. |
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On the left of the picture you can see the drill out removing some of the damaged screw, creating a hole for the spiral flute extractor. The right side of the picture shows the spiral flute extracting the screw anti-clockwise using a drill. | |||
Spiral fluted extractor with drill out ends |
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Also available are spiral fluted extractors with drill out ends. These are similar to the micro extractors above which do the same, however, for screws, bolts and fasteners.
Choose these extractors for quick removal of screws, bolts and fasteners as they can be attached to a standard variable speed drill with no other tool necessary. |
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Here, the spiral flutes remove a wood screw using a power drill. | |||
Bolt removers |
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Bolt removers have both a burnishing end and an extractor in one tool. The burnishing end reshapes the inside of the damaged head of the bolt you are removing. It is used with a drill so you can efficiently and quickly remove bolts with the use of only one tool.
Choose this type of extractor if you plan on removing a lot of bolts, however it also removes screws, studs and fasteners. |
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You have a few choices when deciding which extractor to use and most come in sets which remove a variety of screws, bolts, studs and fasteners.
Some extract screws, bolts and other fasteners; others extract just one or a couple of these. When deciding, you need to know what needs extracting! |
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