Beauty of function.
Beyond the utility.
3/8"sq. ratchet handle "NBR390A" series

World's ﬁnest tool, "nepros" with no compromises.
Designed for superior levels of durability, weight balance and usability.

en.ktc.jp/our̲brand/nepros.html

128 Sayama-Shinkaichi, Kumiyama Kuse-gun, Kyoto 613-0034, Japan
Oﬃcial site : en.ktc.jp
The KTClogo, nepros
logo, and TRASAS
logo are registered trademarks of KYOTO TOOL CO., LTD.
There might be size diﬀerences between those mentioned on this leaﬂet and the actual products for the product tolerance.
Product design might be changed for the improvement without the notiﬁcations.
No.73-36

February, 2023.

"nepros" is the world's ﬁnest tools
stimulating professional senses with durability, usability and beauty.

"nepros" was born to be the world's ﬁnest tools in 1995 with
5 years development period. "nepros" deepen itself with concept"more durable, useful, and beautiful" for the professionals.

Previous model 30mm
NBR390A

26mm

−4mm

Lightweight and highly durable compact head.
The 3/8"sq. ratchet handle, NBR 390A series, was created to seek the usability.
Design for more accessible to narrow space
Comparison of headPrevious model

Compact and light with 90 gears

Best weight balance with hollowed handle

Width of ratchet head shaped up toThe gear weight becomes 40%

4mm smaller.

lighter than previous model for

Streamline shape from ratchet headdesign review by getting rid of

our unique technology.

to handle gives hand ﬁtting comfort-

unnecessary parts.

Achieved both best

able and usability to reduce work

Change from 7 steps to 8 steps

load of professionals.

claw dispersing forces to be

NBR390A

Previous modelNBR390A

Additional hollowing on
the handle designed byweight balance andlightness.

compact and raise the strength.
To be compact and for theShaped up ratchet head.
Actual scale
190 gear madecompact and light

8 steps claw

strength, changer is conjunctwith the lever.

Additional hollowing

2

6 functional beauties
Firmly receive high torquefor pursuing the usability

with a precision 8 claw
with deepened strength

NBR390A 3/8"sq. series are shaped with ideal function,world's ﬁnest aesthetic and functional beauty.

NBR390AL

Provide 6 functional beauties for pursuing the usability
in any situation and places.

Comfortable work without tirednessby the compact head and best wightbalance

3/8"sq. RATCHET HANDLE（LONG）
90PUSH

RepairSpare part Repairable

No.

Standard model,

NBR390AL

Feed angle

B

φT

L

Weight (g)

MSRP

4°

26

20

14275

380

¥ 16,000

・Raised usability by optimized head compacting, lightning,
and weight balancing.
・8 steps claw achieves high strength and durability.
・Repair kit (NBR390A-K) is available.

easy to use in any situationL
φB

NBR390A

TCAUTION

Functional beauties of 90 gears and8 steps claw.

PUSHRepair
Spare part RepairableNo.

Feed angle

BφTL

Weight (g)

MSRP

4°

262014180245¥ 12,600

NBR390A

The ultimate compact shape ﬁts
in your hand

3/8"sq. RATCHET HANDLE
90

・Switching lever must be set completely to avoid breakage.
・Be careful of over-torque for the overall length is long, and it is easy to get an excessive load.

・Raised usability by optimized head compacting, lightning,
and weight balancing.
・8 steps claw achieves high strength and durability.
・Repair kit (NBR390A-K) is available.

NBR390ASL
B

φT

3/8"sq. RATCHET HANDLE（SHORT）

・Switching lever must be set completely to avoid breakage.

90

CAUTIONPUSHRepair
Spare part Repairable

No.

REPAIR KIT FOR 3/8"sq.
90-TOOTHRATCHET HANDLE
90
No.

Drive size

Contents
Drive gear, claw, pin×2,Spring×2, Lever, cover,
ﬂat head screw×2

Feed angle

B

φT

L

Weight (g)

MSRP

4°

26

17

14100

160

¥ 12,600

・Raised usability by optimized head compacting, lightning,
and weight balancing.
・8 steps claw achieves high strength and durability.
・Repair kit (NBR390A-K) is available.

PUSH

NBR390A-K 3/8"sq.

3

NBR390AS

Weight (g)40・Application : NBR390A, NBR390AL, NBR390AS, NBR390AF,NBR390AFL, NBR390AH

LMSRP
B

¥ 4,690

Access to narrow spaces by usingwith extension bar.

φT・Switching lever must be set completely to avoid breakage.
・Be careful of over-torque for the overall length is long,and it is easy to get an excessive load.
CAUTION

4

Improve work eﬃciency in deep areawith long handle and ﬂex head
3/8"sq. RATCHET HANDLE（FLEX HEAD LONG）
90Repair

PUSH

Spare part Repairable

No.
NBR390AFL

Feed angle

BφTL

Weight (g)MSRP4°

262014330425¥ 24,800

・Raised usability by optimized head compacting, lightning,and weight balancing.
・8 steps claw achieves high strength and durability.
・Repair kit (NBR390A-K) is available.

Available for various places with180°
ﬂex head.

LφB
T

NBR390AFL

・Work becomes unstable if too much force is applied to the ﬂex part.
・Switching lever must be set completely to avoid breakage
CAUTION ・Be careful of over-torque because the overall length is long, and it is easy to apply an excessive load.

Dramatically improves access to narrow spaces
with ﬂex head
3/8"sq. RATCHET HANDLE（FLEX HEAD）
90

Repair

PUSH

Spare part Repairable

No.
NBR390AF

Feed angle

B

φT

L

Weight (g)

MSRP

4°

26

20

14225

320

¥ 22,800

・Raised usability by optimized head compacting, lightning,
and weight balancing.
・8 steps claw achieves high strength and durability.
・Repair kit (NBR390A-K) is available.
LB

CAUTION

A beautiful shape that does
not make you feel the jointbetween the head and thehandle. Smooth access evenin narrow spaces.

φ T・Work becomes unstable if too much force is applied to the ﬂex part.
・Switching lever must be set completely to avoid breakage.

Reﬁned shapewith extensibility and beauty

NBR390AF

3/8"sq. RATCHET HANDLE（STUBBY）
90

PUSH

RepairSpare part Repairable

Available in narrow spaces
and the places needed toavoid obstacles by usingwith a spinner handle, etc.

No.

Feed angle

BTL

Weight (g)

MSRP

4°26

1474.5135¥ 12,600

NBR390AH

・Raised usability by optimized head compacting, lightning,
and weight balancing.
・8 steps claw achieves high strength and durability.
・Repair kit (NBR390A-K) is available.
LB

3/8"sq.
TDistance between drives : 50mm

5NBR390AH

・Switching lever must be set completely to avoid breakage
・Be careful of over-torque because the overall length is long,and it is easy to apply an excessive load when using in combination
CAUTION
with a spinner handle, etc.

6