TIME-SERT 4412E-187 Domestic Taper Seat Spark Plug Repair M14x1.25

Question: Are these tools warrantied against breakage? I broke the seat cutter, why would it have broken?

Answer: Time Sert tools are designed and manufactured in the USA and are very good quality; however they do not come with a replacement warranty due to the nature of the tools. As with any type drill bits and taps, the industry standard is "no warranty" due to the tooling being considered consumable. Also, breaking can occur if the tools are dropped or used improperly. The break in the image above most likely was caused by the wrench not being placed down fully into the top of the seat cutter. See the gap? This is NOT fully engaged.

The top part of the recess in the seat cutter is thin, however when fully engaged the wrench is placed into the thickest strongest part of the slotted area. See below.

When the wrench is in place properly and engaged fully there will be no space showing. The wrench is fully in the slot. See the image below.

 

 

Question: I have a broken seat cutter, but it's broken on the other end. The cutting blade broke. What caused the problem?

 

Answer: A broken cutting blade on the seat cutter is most likely caused by the tap not being in the correct depth. For other's doing this job, pay special attention to step number two in the instructions, keeping the tap's cutting edges 1/4" below the surface and this will not be an issue.  Printable Instructions for Time-Sert 4412E

 

 

 

Notice that, if the tap (which also acts as a guide for the seat cutter) is not down far enough, the cutting blades may catch the top threads of the tap and cause breakage.

Mouse over the images above for a more detailed view of the kit components. Also notice our bulk discount prices on TIME-SERT replacement inserts for thread repair kits. Need more information on TIME-SERT thread repair kits? Visit our auto repair blog section on thread repair kits for tips, advice and all your thread repair questions answered. Just comment and we will be quick to respond.

See the  TIME-SERT products pdf for more information on thread repair kits and inserts. Some are listed for certain applications on cars, trucks and motorcycles. The pdf is a partial application list so feel free to email or call if we can assist with your particular need. We also accept inquiries regarding our daily TIME-SERT specials. Remember TIME-SERT is recommended by leading car manufacturers like the General Motors Corporation. In fact TIME-SERT is GM's only authorized repair for head bolt threads.