HILKA Professional 8pc Stud and Screw Extractor Set 3 to 26mm in Blow Moulded Case HIL12400008 - NEW

Hilka Tools seem like they have been around since the invention of the wheel.

With tested quality control that's second to none and backed by a no quibble guarantee most people in the trade believe it's worth paying that little extra to know what you're getting.

Hilka Tools have now been established for just over 40 years now. You don't last that long selling tools not up to the mark. You can definitely find cheaper but won't be the same quality or have the expected longevity you get with a Hilka Tool.

These stud/screw extractors will remove broken studs or blots from 3 mm - 26 mm in diameter.

Each of the 8 extractors has a left hand screw thread, used to remove Philips and Pozi head screws which have lost their shape making it difficult to remove the screw with a screwdriver.

They can also be used to extract a broken studs or bolts. Simply drill a hole through the centre of the bolt and tap the tap the extractor in to the hole thus removing the bolt without damaging the thread of item the bolt was screwed in to.

This really is the quick and easy way to remove broken, screws, pipes, bolts and broken studs.

Manufactured from a high standard of drop forged and heat treated steel. Made to last when using at high speed.

Packed in a blow moulded case.

Full instructions and tools required below

Instructions:

• Tools required for the job. Suitable HSS drills bits, the extractors, a drill, a file, a centre punch, some penetrating oil, cutting oil, a small hammer (preferably made from softer brass) and a tool for turning the extractor.
• Choose the correct size extractor for the job. A rough rule is that extractor should be about 60 to 70% of the bolt to be extracted. If you need to remove a 10mm bolt you will need a 6 to 7mm extractor.
• If the bolt has broken at an angle it is best to file it down a flat a possible.
• With the bolt top as flat as possible get the centre punch and hammer and centre punch the very centre of the bolt. This is to give you a perfect start for your pilot hole.
• Using a small drill bit make the pilot hole. Best to start with a very small one like a 2mm. Once this drilled get your second drill bit for example a 4mm to increase the pilot hole size. When this is done repeat the process with a with a 6mm drill. This is slightly smaller than the extractor you going to use. A tip when drilling is to use some cutting oil to make the drilling easier.
• Then select the extractor you need, in this case it will be a 6.4mm and firmly drive into the bolt with your hammer.
• Drive the extractor in at least one and a half times the width of the bolt so in this case it will be 15mm.
• The ideal tool to use to turn the extractor is a tap handle from a tap and tie set. These have a push and pull action and will help keep even an force on the extractor with little or no lateral forces.
• Grip the tap handles with both hands and apply even pressure in anti clockwise direction to the extractor. The bolt will then start turning and job is done.
• If the extractor won't move the bolt it's more the likely defiantly seized in there. You will then have to apply some heat with oxygen acetylene torch. When heated up the bolt should then move very easily. Do this very quickly after the heat has been applied.
• If this still fails to move the bolt or you have broken the extractor in the bolt you will have no choice but to drill out completely and re-thread the bolt hole using a tap and die set.

Hilka Tools trusted in the trade.

Please Note:

Safety google to be worn at all time when drilling and using the extractor. We also recommend using a pair of protective gloves.

Specification

• Brand : Hilka Pro Craft
• Type : 8 Pc stud, bolt and screw extractor set
• Unit of Measurement : Metric
• Number of Pieces : 8 Stud extractors
• Material : High standard of drop forged and heat treated steel
• Size : 4mm extractor 5mm to 6mm bolt ; 4.5mm extractor 6mm to 8mm bolt ; 6.4mm extractor 8mm to 11mm bolt ; 7.6mm extractor 11mm to 14mm bolt ; 11mm extractor 14mm to 18mm bolt ; 15mm extractor 18mm to 20mm bolt ; 19mm extractor 20mm to 22mm bolt ; 24mm extractor 22mm to 26mm bolt ;
• Drive direction : Anti-clockwise
• Use : To extract broken bolts
• Type of bolt : Right hand thread only
• Instruction : See description or our website
• Storage : Bespoke moulded case for transit purposes
• Grade : Trade quality
• Packaging : Hilka packaging 100% genuine
• Manufactures warranty : 1 Years from date of purchase

Features

• These stud/screw extractors will remove broken studs or blots from 3 mm - 26 mm in diameter
• Each of the 8 extractors has a left hand screw thread, used to remove Philips and Pozi head screws which have lost their shape making it difficult to remove the screw with a screwdriver
• They can also be used to extract a broken studs or bolts. Simply drill a hole through the centre of the bolt and tap the tap the extractor in to the hole thus removing the bolt without damaging the thread of item the bolt was screwed in to.

Includes:

• 8 x Extractors 4mm, 4.5mm, 6.4mm, 7.6mm, 11mm, 15mm, 19mm and 24mm
• 1 x Blow moulded storage case

RRP - £16.99

Frequently Asked Questions

• What happens if I break the extractor in the bolt. Are these unbreakable and if so does the warranty cover them?
• All the extractors of every size will break at some point when excess pressure is applied for sure. They are designed to do his and so is quite normal. When they break thy will splinter and shatter making them quite easy to remove from the drilled hole with a pick. If you have heated and then broken the extractor then you will have no choice but to drill an re tap the thread. In answer to your question broken extractor bit are now covered under warranty as they are designed to do this.
• Why do I need to drill a pilot hole and what type of drill bits should I use?
• The pilot hole will act as a guide and also reduces the power needed to turn a large drill bit. It's much easier to drill several small holes than one large one. Most of these jobs will be done by hand either in situ or on a workbench so you will have to very carefull to drill strait and true, Definatly use a centre punch to find the center of the bolt so the smallest drill will have a seat and not jump about. The drill bis have to for metal and HHS are prferable. Hope this helps.