Loading... Please wait...

Blog

Should a Dremel be used with a Rescue Bit?

Posted by

We had a recent customer that broke a Rescue Bit using a Dremel. This is what he said: I read instructions and used 3 speed Dremel, it lasted about halfway through a small EZ out. Don't know what I will do now.

From Wise: Sorry to hear that you had an issue. While there is a learning curve in using the Rescue Bit, it is an option for drilling EZ Outs that are very hard and brittle. As far as what to do now, I'd try taking a small drill bit and trying to drill all around (not into) the broken EZ Out. This may allow enough room to remove it without actually drilling into it. Not as simple as drilling it out with a Rescue Bit but is possible. Takes some skill. I worked with a guy that was very good at using this process to remove bolts with broken EZ outs, but it does take patience as well.

For other's I would not personally advise anyone to use a Dremel. The manufacture does say the 1/8" Rescue Bit can be used in a Dremel but they also say it must be broken in half first. The Dremel "chucking" of the bit would most likely damage or break the bit since it would grab directly on cutting flutes. This is not the case if chucked in a regular drill because the chuck is much bigger and won't damage the bit, if chucked securely. I'd recommend using a rounding motion and starting with the reamer end to remove small burrs that may "catch" and break the Rescue Bit, especially at higher speeds. A 3 speed Dremel on it's slowest speed is still 12,000 RPM's! That's pretty fast and I can imagine binding and breaking a bit before a human could even react. Therefore, I we don't recommend using in a Dremel unless you have plenty of experience with using the Rescue Bit, like our machine shop customers have. The fact that this customer's bit broke half way in indicates that the 'rounding" motion was probably not used. The rounding motion, helps to keep the bit from binding. Also, if it did break for some reason, the extra room allowed from using this rounding motion would allow for much easier removal. It is safest to use a drill that allows you to control the RPM's at a much slower speed. Air die grinders that can be throttled to allow slower starting speeds are a good choice too. Air die grinders that have an "all on" trigger and doesn't allow slower speeds is not ideal. Note that a 1/8" collet would be required for the air die grinder and there's no need to break the bit in half like you would with a Dremel. In review, the two most important things remeber is to use the rounding motion and start at slower speeds.

Remove Broken EZ Outs and More - Rescue Bit

WiseAutoTools.com Summary: FAQ's for the Rescue Bit. Easy outs are not easy to drill. The metal is so hard that a regular or even a cobalt drill bit cannot touch it. We have had many customers call to ask what do you have that can drill out a broken tool like this? Fortunately, we have [...]

Read More »


BMW Oil Pan Thread Repair – Aluminum Drain Plug Thread Repair Kit

Summary: Best recommendation for aluminum oil pan thread repair kit. Aluminum oil pans are used on most BMW’s (as well as many other brands) today to reduce the over-all vehicle weight. However, drain plug threads on BMW aluminum pans are weaker than steel threads. The threads are more likely to wear from oil changes over time. [...]

Read More »


Time Sert J-42385-300 Northstar Main Bearing Thread Repair

WiseAutoTools.com © Summary: The authority on thread repair! You’ve got questions and we have the answers. More information and fastest shipping from WiseAutoTools.com. Largest stocking Time Sert distributor in Florida with free expedited shipping anywhere in the continental United States. Master tech owned so we can answer your questions properly and quickly. Yes, we’ve actually [...]

Read More »


Sprinter Glow Plug Thread Repair Time Sert 4010GP

WiseAutoTools.com © Summary: We answer questions on thread repair on the Sprinter 2.7 diesel 5 cylinder engine for the glowplug. We are an authorized Time Sert distributor selling the very best thread repair kits, made right here in the USA. Master tech on duty to answer questions on applications. Want to go directly to the [...]

Read More »


Time Sert 7220 and 4800 Wise Buy

WiseAutoTools.com © Summary: The Time Sert 7220 is an M12x1.5 head bolt thread repair kit for fixing pulled threads in many Honda and Acura v-6 engines. The 4800 is a universal head bolt kit that works on any car that uses the M12x1.5 head bolt size because it can be used at different depths. This [...]

Read More »


Ford Spark Plug Blow Out – Solved

WiseAutoTools.com © Summary: This is one of our more extensive articles on spark plug thread repair. If you need answers fast to get a vehicle up and running quickly we understand. No time to read? We’ve got answers, give us a call at 800-734-8665 x251. To continue some research by reading 10-15 minutes see below.Ford spark [...]

Read More »


Ford Misfires Shakes and Basically Runs Bad

WiseAutoTools.com © Summary: DenLors Tools and Wise Auto Tools specializes in automotive tool sales. However, sometimes we get questions on auto/truck repair unrelated to any specific tools. One of the most common problems with Ford F150’s is blown spark plugs. The aluminum threads fail, ejecting the spark plug breaking the coil on the way out. [...]

Read More »


Time Sert 11155 Inserts – Same as J-42385-507

WiseAutoTools.com © Summary: See current Time Sert 11155 prices (be sure to click on Buy in bulk and save). Best prices on Time Sert replacement inserts part number 11155 which are the same as Kent Moore J-42385-507 inserts. Kent Moore which is GM’s OE tool manufacturer name has several thread repair kits which are actually [...]

Read More »


TIME-SERT 5600 Made in the USA!

WiseAutoTools.com © Summary: Testimonials for the Time Sert 5600 Triple oversize thread repair kit. Wise Auto Tools is happy to offer the Time Sert 5600 which is made in the USA. With so many China made spark plug thread repairs being sold at parts stores that tend to fail sooner or later. It's good to [...]

Read More »