Скачать или смотреть 【工具紹介】ラチェットアダプターが面白い③コーケン(Ko-ken)3/8” 3755 1/4” 2755カッチリガッチリ感№１

Interesting ratchet adapter③
Ko-ken
3/8DR 3755 1/4DR 2755
Solid feeling No. 1

3/8”3775
Made with a solid feel and a sense of security.
Less wobbling, less play
It is a ratchet adapter with a rugged image.
1/4”2755
thick body
Inside the 1/4 ratchet adapter
It feels pretty rugged
I normally use it up to about 40-50N m.
About 8mm diameter 12~13mm bolt
I don't think there will be any problem with final tightening.

There are two types of ratchet adapters
inner hold or outer hold
(Handle on the inner side or handle on the body side)
There are many inner hold types.
Koken's ratchet adapter
Outer hold type

Advantages of outer hold type
Same direction as normal ratchet

ratchet adapter
handle on the inner side
Because there are many structures to attach
against the handle
Tends to give a wobbly impression

Mr. Koken's wobbly feeling
It's about the same as a regular ratchet

What's not good about it
It's hard to turn your finger...
Needs some ingenuity such as adding a quick spinner

quick spinner 3756
For 3/8, the standard product fits old and new products.
Z-EAL is smaller
I love using old products with no steps.
Current products also fit
Z-EAL is tiny
Z-EAL has many compact products.

KTC is made of resin and has a good grip.
Professional design that won't cause damage even if you hit it
After all, it is the best match for Nepros appearance.
Still, it's still a snap-on~ (lol)~
It has a strong presence with an emphasis on atmosphere.
Tone's standard product
Great finger grip! A friend of the heavy ratchet that spins idly
Little Tone (TONE)
Astro's 1/4 conversion
I wish it was a little bigger
Astro's 1/2 conversion

Quick spinner 2756
1/4” Koken original
Both the standard product and Z-EAL are a little smaller.
It's a standard size
There are many quick spinners made by other companies that will fit.
Personally, I like the Nepros Quick Spinner.
Often used in combination

Quick spinner 2756
Koken original
1/4 standard product is slightly smaller
2756Z
Z-EAL is smaller
KTC
After all, it’s Nepros!
Probably the best match visually?
1/4 TONE
Little Tone (TONE)
Astro's bit adapter
DeeN's 3/8 conversion
Mr. Straight

It does not reach
I can't reach 3/8 with my fingers.
I ended up removing it and turning it around.

Maintenance is very good
Snap ring convenience

KNIPEX 48 21 j21
Applicable snap ring (nominal diameter) 19-60mm
Claw tip diameter 1.8mm

Large holes make it easy to disassemble
Usable snap ring pliers
There are many choices

The inner structure is one piece.
Repair looks like assembly replacement.
The size of the gear is so different between 3/8 and 1/4
I would like to use 1/4 with a moderate torque.

swivel ratchet handle
3776J 45 gear
Mr. Koken's round head is
It looks like the structure is basically the same

3776J is a very durable ratchet.
Having the same structure as this gives me a sense of security.

T-type slide handle
3/8”3785 1/4”2785

Slide T handle with distinctive oval bar
If the direction of the ellipse was vertical
Was it easy on your hands? ...
The actual weight is from TONE's slide T handle.
It's light, but for some reason it feels heavy.
Is it due to the texture of the plating?
It is a slide T handle with a very strong presence.
3/8 has a center lock and slightly protrudes.
The feel of the slide is good with just the right amount of resistance.

1/4 2785 is a thin circular bar without center lock.
Somewhat protruding type
The feel of the slide is light
1/4 without center lock
I don't feel much inconvenience
It's slender, probably because I don't want to apply too much torque.
Personally, I like thicker ones
Tone's SL20 and
Often used in combination

universal joint
3/8” 3770　1/4”2770
Koken's 3770 is a little larger.
It is a sturdy universal joint with little play.
Koken's standard top is a little large, so
Good compatibility with standard tops
Z-EAL pieces are very small
I think we are able to differentiate well.
Frequently occurs with diameters of 17 mm or more
It is a universal joint

1/4”2770 is standard size
less play
Sturdy construction
Can be used with confidence
It is a universal joint

Extension Bar
3/8” (9.5) 3760-150 150mm
1/4” (6.35) 2760-75 75mm
Koken's standard extension bar
Knurling is very convenient
Can be used as a screwdriver even without a handle

extension adapter
Concave 3/8” Convex 1/4”Z-EAL 3322AZ-75
Useful when you want to use 1/4 socket with 3/8
After getting TONE's SL30S
There are more appearances

Mr. Koken’s 1/4” is
Glows in combination with the spinner handle
Mr. Koken’s 1/4” 2768N
It seems a little expensive though
1/4” ratchet adapter
Maybe it's your first choice?

In a ratchet adapter that tends to wobble
Koken's ratchet adapter
It gives the most solid impression.
The clicking sound of the gears feels good
Strong enough to meet professional needs
I think it's a solid ratchet adapter.
When you want to hear a good clicking sound
When fighting with extremely hard screws
This is a Chet adapter that you can pick up.