Snap On Im3100 Impact Wrench 3/8 Drive 1 Extended Anvil A Freshly Rebuilt Tool

Offered for sale herein is a fully. Snap On IM3100, 3/8 drive impact wrench as shown above. This tool was bought as a used working impact wrench needing a tune up and reverse valve upgrade as only someone with my background and parts inventory could offer. I performed the complete teardown, inspection, made necessary parts replacement and repaired this tool to like-new performance. This 3/8" drive, 1" extended locking pin anvil looks like it was barely used.

This tool was Snap On test torque rated for 230 foot pounds back when the Snap On service centers repaired this tool over 13 years ago. This actual number is closer to a range of 230 to 250 maximum foot pounds (with high volume air fittings and air pressure between 90 to 100 psi on full open throttle operation). Used properly in daily repair work and avoiding heavy and long impacting duty cycles on frozen rusted fasteners (for longer than 3 to 5 seconds) will allow this tool to operate for 5 to 10 years or more. If you insist on using this tool as your primary impact wrench for more than 250 foot pounds constantly in long hammering duty cycles you will shorten the life of this tool dramatically.

Using a breaker bar and penetrating oil will allow this tool to last more than 10 years. If your nut busting demands are frequent and in the higher torque ranges exceeding 230 foot pounds this is not a tool for that type of duty cycle by it's engineering design. This tool is often preferred by older mechanics who began their career over 30 years ago. I installed an updated reverse valve kit (for better sealing and internal air flow) with a quad ring spool seal and a new back cover gasket.

I surfaced the back cover for a parallel condition making a positive air seal. I finally installed a super clean 3/8 drive pin style anvil.

The clean and gently used impact mechanism parts will assure long service life from this tool to an appreciative end user. I spend a great deal of time hand polishing the internal surfaces of the tool housing so that I can install dry parts without any drag or friction. I have found that this is a key to proper Snap On impact wrench repairs. Removing drag (with hand polishing and metal surface smoothing) then using dry parts to test fitment before making final assembly easy assures final assembly and tool operation that will provide like-new performance. Many new Snap On Tools are built with new parts that are not properly fit well to each other.

It is often overlooked on remediation by service technicians who force the same poorly fitting parts back together only to create internal binding. New o'rings, oil seals, phenolic rotor vanes and bearings complete the parts I change out. Air motor end plates are resurfaced, then properly cleaned and inspected for fit and fitment.

This will make smooth installation without burrs and nicks that cause internal scuffing and drag marks to the tool housing. I typically hone my cylinders and scrap any parts that are micro cracked or rust pitted. The air motor is never given short shrift in my repairs as this is where the tool develops rotor drive end rpm. With this deal I also provide (2) extra 3/8 anvil retaining ring kits. Dirty and wet air will be the death any Snap On air wrench.

Daily oiling and or an inline oiling and filtration system will give many excellent years of forward service life to this tool. This IM3100 tool was uniquely designed to allow drive anvil changes in a few minutes. Simply pull the wire retainer from the front of the tool and swapping the drive anvil from 3/8" to 1/2" drive could be done easily. The problem with this thinking was that the tool was designed more as a 3/8" drive medium duty impact versus the concept of 1/2" drive medium duty that the Snap On truck dealers tried to fool you into thinking. I would not rebuild this tool and offer it if there were some marginal parts internally.

I do recommend using 2 or 3 wraps of plumbers teflon tape on the last few threads (but not on the first 2 threads) of your male threaded shop air fitting to avoid bottoming into the inlet bushing threads with your shop air fitting to capture a proper air seal. Teflon tape can shred and clog the bushing debris screen when not carefully used. Avoid using air fittings with less than 1/4 ID and make sure to obtain 90 psi air pressure to the tool with air hoses that are not cracked internally. If you have any performance problems with any air tool always check the air inlet bushing debris screen first to make sure that the tool is not being starved for air supply. That is because there are some shops with wet and dirty air, deteriorating air hoses or shop air piping that will destroy tools.

If you do have a tool performance issue that is my fault I recognize that you will need my support to make corrective repairs. I make every effort to correct any existing tool issues and verify my work when I rebuild a pneumatic tool. This item is in the category "eBay Motors\Automotive Tools & Supplies\Air Tools\Impact Wrenches". The seller is "ibidtobuy" and is located in this country: US.

This item can be shipped to United States, New Zealand, Fiji, Papua New Guinea, Wallis and Futuna, Gambia, Malaysia, Taiwan, Poland, Oman, Suriname, United Arab Emirates, Kenya, Argentina, Guinea-Bissau, Armenia, Uzbekistan, Bhutan, Senegal, Togo, Ireland, Qatar, Burundi, Netherlands, Iraq, Slovakia, Slovenia, Equatorial Guinea, Thailand, Aruba, Sweden, Iceland, Macedonia, Belgium, Israel, Kuwait, Liechtenstein, Benin, Algeria, Antigua and Barbuda, Italy, Swaziland, Tanzania, Pakistan, Burkina Faso, Panama, Singapore, Kyrgyzstan, Switzerland, Djibouti, Chile, China, Mali, Botswana, Republic of Croatia, Cambodia, Indonesia, Portugal, Malta, Tajikistan, Vietnam, Cayman Islands, Paraguay, Saint Helena, Cyprus, Seychelles, Rwanda, Bangladesh, Australia, Austria, Sri Lanka, Gabon Republic, Zimbabwe, Bulgaria, Czech Republic, Norway, Côte d'Ivoire (Ivory Coast), Kiribati, Turkmenistan, Grenada, Greece, Haiti, Greenland, Yemen, Afghanistan, Montenegro, Mongolia, Nepal, Bahamas, Bahrain, United Kingdom, Bosnia and Herzegovina, Hungary, Angola, Western Samoa, France, Mozambique, Namibia, Peru, Denmark, Guatemala, Solomon Islands, Vatican City State, Sierra Leone, Nauru, Anguilla, El Salvador, Dominican Republic, Cameroon, Guyana, Azerbaijan Republic, Macau, Georgia, Tonga, San Marino, Eritrea, Saint Kitts-Nevis, Morocco, Saint Vincent and the Grenadines, Mauritania, Belize, Philippines, Democratic Republic of the Congo, Republic of the Congo, Western Sahara, Colombia, Spain, Estonia, Bermuda, Montserrat, Zambia, South Korea, Vanuatu, Ecuador, Albania, Ethiopia, Monaco, Niger, Laos, Ghana, Cape Verde Islands, Moldova, Madagascar, Saint Pierre and Miquelon, Lebanon, Liberia, Bolivia, Maldives, Gibraltar, Hong Kong, Central African Republic, Lesotho, Nigeria, Mauritius, Saint Lucia, Jordan, Guinea, British Virgin Islands, Canada, Turks and Caicos Islands, Chad, Andorra, Romania, Costa Rica, India, Mexico, Serbia, Kazakhstan, Saudi Arabia, Japan, Lithuania, Trinidad and Tobago, Malawi, Nicaragua, Finland, Tunisia, Luxembourg, Uganda, Brazil, Turkey, Tuvalu, Germany, Egypt, Latvia, Jamaica, Niue, South Africa, Brunei Darussalam, Honduras.

Non-Domestic Product: No
Brand: Snap-on
Accessories: Tool cover, black handle grip
Warranty: No Warranty
Max Torque: 250ft/lbs.
Air Inlet Size: 3/8in.
Manufacturer Part Number: IM3100
Set or Single Item: Single Item
Country/Region of Manufacture: United States
Modified Item: NO
Drive Size: 3/8in.