in a narrow place
How many times should I drop the ratchet?
Does the screw turn once?
A ratchet with a small number of full cycles
Isn't it easy to work with? I hypothesized that
We tried to compared
Ko-ken 3/8”-9.5 Z-EAL
Ratchet handle 3725Z
72 gear and 36 gear
The size and shape of the head are the same
Is it better to have more gears?
72 gear head width approximately 28mm
19.7 times
36 gear head width approximately 28mm
18 times
Under these conditions, 36 gears are slightly better.
I didn't have to do the full number of times.
72 gear has a bit more play due to its structure.
Full angle is about 30°
36 gear was just 2 notches, so
I think 36 gears are an advantage.
If it's about 25 degrees
I think 72 gear was advantageous.
If there is no limit to the free angle
I don't think there is much difference between 72 gear and 36 gear.
NEPROS
90 gear NBR390 Head width approximately 30mm
36 gear NBR3UN Head width approx. 28mm
Is NBR3UN's neck slightly thinner?
90 gear NBR390
37 times
36 gear NBR3UN
27 times
NBR390 can be said to be a representative of big heads.
To withstand high torque with 90 gears
I think it's gotten bigger.
It's huge after all
I can't make the most of my precious 90 gears.
There are quite a lot of cases
Don't compromise on strength! It feels like
I like the KTC feel~ (lol)~
If there is no limit to the free angle
There is not much difference between old and new
36 gear 2 notches 30°, 3 notches 40°
I feel a good balance
SPIDER stepless gearless ratchet
BZWBX20938 Head width approximately 35.8mm
Feed angle 1° or less
10.7 times
large round head
Gearless!
It's amazing that the feed angle is less than 1°.
The amazing thing is that there is almost no play.
The problem is...there's no clicking sound.
It doesn't feel like a ratchet (lol)
Idle torque is a little heavy
In this case, the round head is advantageous.
Good results with a structure that allows full use of the free angle
FACOM
J.161B 3/8
72 gear head width approximately 30.5mm
R.161 1/4
72 gear head width approximately 25mm
J.161B 3/8
11.5 times
R.161 1/4
9.5 times
The popular secret of the popular Facom
Although the gears are smooth
The advantage of having a round head is also the secret to its popularity.
If the head is small, it is advantageous because you can get a better angle of movement.
R.161 1/4 is a very convenient ratchet for narrow spaces.
High strength with multiple gears, small head makes it easy to spin
I think the 161 is a masterpiece.
TONE
RH3HW
72 gear
Head width approximately 27mm
RH3CH
72 gear
Head width approximately 20mm
HAZET
8816HP
90 gear
Head width approximately 32.4mm
Mr. Hazet who emphasizes strength
Mr. Tone who emphasizes compactness
Even the same 3/8" is so different.
RH3HW Head width approx. 27mm
9.8 times
RH3CH Head width approximately 20mm
7.7 times
Having a large number of gears is advantageous in narrow spaces.
However...72 gear and 90 gear
The difference in feed angle is 1°...
The amount of play becomes the idle distance.
Head size remains the same
This tends to result in a difference in the deflection distance.
KTC Flex Ratchet Handle
BR2F 6.3mm (1/4 inch)
36 gear head width approximately 22mm
14 times
Ko-ken Z-EAL
Swing ratchet handle
2726Z 6.3mm (1/4 inch)
36 gear head width approximately 20.5mm
12 times
in narrow places
Rather than a big head with many gears
Even if there are fewer gears, it is better to have a smaller head.
Ratchet the full number of times
It seems like less is enough
If you can secure the necessary strength
The more gears the better
The smaller the head the better
It's better to play less
The shaft should be thinner
In this condition
It turned out to be something like this
It will change if the conditions change
Please use it as a reference only
Tone RH3CH 3/8
72 gear 20mm 7.7 times
Facom R.161 1/4
72 gear 25mm 9.5 times
Tone RH3HW 3/8
72 gear 27mm 9.8 times
SPIDER BZWBX20938 3/8
Gearless 35.8mm 10.7 times
Facom J.161B 3/8
72 gear 30.5mm 11.5 times
Koken 2726Z 1/4
36 gear 22.5mm 12 times
KTC BR2F 1/4
flex ratchet handle
36 gear 22mm 14 times
Koken 3725Z 3/8
36 gear 28mm 18 times
Koken 3725Z 3/8
72 gear 28mm 19.7 times
Nepros NBR3UN 3/8
36 gear 29mm 27 times
Nepros NBR390 3/8
90 gear 30mm 37 times
Motorcycles, computers, DIY etc.
I'm mainly playing around with it
I don't often have trouble in very small spaces.
TONE's
RH3CH 3/8 and RH3HW 3/8
I've been using it for a while
It's a ratchet that has a very high chance of being picked up.
If you use it like this
Maybe it's the best balance
Due to character limit, I could not post the entire text.
If you want to read the full text, please Google translate the Japanese explanation in the summary section.
4 окт 2024
