Stahlwille Jet Reamers

[Wamsutta]

These things are awesome. Each reamer has 3 sections. The first section towards the tip is a pilot section to get you lined up with the hole. The middle section is square and it's what does the cutting. The last section is round and it's what goes into the collet of the handle. The only thing I need to figure out is what to measure the diameters of each reamer. Some are less than one millimeter or 10ths of a millimeter. I've been using an electrical wire gauge to get me by, but some kind of metric measuring instrument would be better.

Stahlwille 11085 Jet Reamer Set | Stahlwille at KC Tool

Stahlwille 11085 Jet Reamer Set 16 pieces in case (0.33; 0.4; 0.45; 0.5; 0.6; 0.7; 0.75; 0.8; 0.9; 1.0; 1.1; 1.2; 1.4; 1.6; 1.8; 2.0 mm) For cleaning nozzle...

www.kctool.com

 

[KnurledNut]

The sizes are listed in the description:
16 pieces in case (0.33; 0.4; 0.45; 0.5; 0.6; 0.7; 0.75; 0.8; 0.9; 1.0; 1.1; 1.2; 1.4; 1.6; 1.8; 2.0 mm)

 

[Wamsutta]

That description tells me what to look for. I still have to measure them to know which is which. These things look like cat whiskers.

KnurledNut - What would you use to measure the diameter of a cat whisker in millimeters?

 

[Firebrick43]

A micrometer, a metric one.

 

[KnurledNut]

That description tells me what to look for. I still have to measure them to know which is which. These things look like cat whiskers.

KnurledNut - What would you use to measure the diameter of a cat whisker in millimeters?

A C-hair ruler, of course!

 

[1982fxr]

What are common uses for these?

 

[rlitman]

...The middle section is square and it's what does the cutting. The last section is round and it's what goes into the collet of the handle....

The middle cutting section should be pentagonal and tapered. The handle **** end can be round or square to work in a 4-jaw pin vise.

I can't say I've ever needed to measure broaches. You just try a few until you find the one that fits. Measuring them would be difficult (just like measuring the a 5-lug rim's bolt circle), because you would want to know the major diameter, but a micrometer will land on a flat, though you can get an estimate on the broach's range by mic-ing the round ends.

 

[Wamsutta]

A micrometer, a metric one.

Do they make one that will measure down to 0.33 millimeters?

 

[Wamsutta]

What are common uses for these?

Little tiny brass holes. Makes them bigger.

 

[Firebrick43]

Do they make one that will measure down to 0.33 millimeters?

Yes, they measure to zero. Or are you talking about the ID of the holes? Gauge pins would measure such holes.

 

[rlitman]

... Or are you talking about the ID of the holes? Gauge pins would measure such holes.

If you have both the pentagonal and smooth (round) broaches, you can always drop a round smooth broach in the hole, mark where it stops and measure that point using a micrometer. It doesn't work with a pentagonal broach, but it works fine with round ones.

 

[Wamsutta]

Yes, they measure to zero. Or are you talking about the ID of the holes? Gauge pins would measure such holes.

Just the O.D. of the reamers. For the I.D. of the hole, the Honda jet cleaning kit gives me a good idea of the hole size.

 

[rlitman]

Just the O.D. of the reamers. For the I.D. of the hole, the Honda jet cleaning kit gives me a good idea of the hole size.

They're different animals. The Honda jet cleaning kit is a cylindrical file, just like any torch tip cleaner, so each one has a single size. The Stahlwille jet reamers are tapered broaches, and since they're tapered, the size is a range.

 

[Wamsutta]

They're different animals. The Honda jet cleaning kit is a cylindrical file, just like any torch tip cleaner, so each one has a single size. The Stahlwille jet reamers are tapered broaches, and since they're tapered, the size is a range.

The Honda jet cleaners are smooth wires. That's why they're expensive as all heck and back. Massively overpriced for what you get.

 

[Firebrick43]

If you have both the pentagonal and smooth (round) broaches, you can always drop a round smooth broach in the hole, mark where it stops and measure that point using a micrometer. It doesn't work with a pentagonal broach, but it works fine with round ones.

A micrometer works just fine to measure a pentagon reamer. Like most machining operations it just involves a little math.

(H)eight of the pentagon - measure flat to opposite peak

Circumcircle = H x (.5528 x 2)

And while the freaky deaky watchmakers might call them broaches the rest of the machining world calls them reamers including stahlwille. Reamers teeth are parallel or slightly skewed to the bore axis.

Broaches are pulled or pushed thru, don’t rotate in relation to the part and the cutting teeth are perpendicular or slightly skewed to the bores axis.