Dremal bits n stuff and Porting

[montessgtp]

Today i sat in line for a hour and 35 minutes for 5$ worth dremel sanding bands...at walmart...not to mention it took me another 20 minutes to actually get back out of walmart. I really hate xmas...BUT for those of you who are into minor porting sanding w/e your nitch is, Walmart carries one of the biggest selection of drewel accesseries ive ever seen and there pretty reasonable. Just thought id share that.


Also what kind of bits and acc. are you guys using to port and cleaning up diffrent peice of heads and intakes. I been doin alot of porting and cleaning on my dirt bikes and quad motors. Got bored and started messing with some 3100 and 3.4 TDC shit i have. Please share what you use to make it easier i go through Sanding bands like crazy and they leave the surface real ruff 60 grit and 120 grit is all i can find usally.

[bszopi]

I think most of us here use die grinders, not Dremels...

[SappySE107]

I wont use a dremel for anything other than the very detailed combustion chamber work. It takes way too long to use a dremel for porting, plus the bits dont last long.

[v6h.o.]

i still dont understand how you boys use dremels to port? makes no sence.

i have a beauty Mac Tools die grinder, with both Ferrous and nonferrous 6 inch long and 3 inch long shanked carbide cutters. that and i use the Standard abrasives delux porting kits from summit. damn cheap. good stuff.

[patgizz]

stupid question. where do i get the carbide cutters for my die grinder? ive got 2 pairs of heads to port

[geoffinbc]

First off they are called Burrs not Cutters. And the only ones I have used are from JET Tools. But other brands sell similar products. Buy a good grade carbide tool.

Use a die grinder they are way stronger then a dremel and the 1/4" shank allows you to use some pressure and not have the tip virbate or the shank break. When you are cutting have plenty of WD40 on hand to prevent the bit from clogging. Using lubricant will increase the speed 10 fold. Sanding rolls come last and are used for finishing do not try and use them to take down alot of material. Use lubricant when sanding aluminum aswell.

Burrs look like this http://www.ruffstuff.com/pages/carbide.html

[patgizz]

cool i have a set of those even. didnt know if there were special ones for head work or anything.

[evilmiata]

Link to bits

McMaster. Use a 1/4" shank, Cylindrical-Radius End burr. The double cut will work faster but leave a texture that reminds me of hamster knawings. A Dremel is only a SANDER.[/url]

[SappySE107]

you can get small carbide bits for the dremel, which is what I used on my combustion chambers to deshroud around the valve. Im not a fan of the dremel at all...I think they are kids stuff but for the very detailed work I had to do a 1/4 shank with any sized ball on the end just wouldn't do. I finished it up with the die grinder and some sand paper rolls and cross buffs...but god knows sand paper rolls would take forever when a small ball cutter (oops, BURR, whatever..ill call it a cutter cause it cuts the metal) does the job better and faster.

[quantum110]

Long links make baby jebus cry....

Ben, I know a few bords have an edit that keeps every post from being stretched like this. Might be something to look into...

[StudlyCamaro]

there are other lubricants that work better than WD40 , friend was using lquid wrench when he did my old heads, it contained teflon , so when he was grinding it still lubricated when the part was dry ( or so he told me anyway)

[1QUICKHATCH]

I use a dremal but its not like the little moto tool you buy at canadian tire

[Anonymous]

there are other lubricants that work better than WD40 , friend was using lquid wrench when he did my old heads, it contained teflon , so when he was grinding it still lubricated when the part was dry ( or so he told me anyway)

My dad is a gas fitter and uses some sort of thicker oil (looks almost like motor oil) when thredding the end of pipes. I don't know squat about working with metal just throught I'd toss that bit in.

[StudlyCamaro]

probably an oil for use when grinding/cutting metal, thoes oils cost more than liquid wrench or WD40 , im ghetto , i do stuff as cheaply as possible and make sure that it still works 90% of the time, however i have used them when i was workign on my university's formua race car , the oil we had lasted a long time and cooled parts a lot when using the lathe and the mills

[SappySE107]

I just editted his post for now.