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Koki Holdings Co.,Ltd.


14.4V/18V Cordless Driver Drills
with Brushless Motor

High Performance and Compact Design
DS14DBSL/DS18DBSL Cordless Driver Drills with Brushless Motor
  • Lithium-ion Battery
  • Brushless Motor
  • Compatible Batteries
  • The Large Dia. Brushless Motor and Optimized Gear Ratio Offers...
  • Most Powerful *1 Torque in its class & Significantly Increased Application Speeds
Illustration of the large dia. brushless motor and optimized gear ratio
*1: Except for the Max Torque Hard of the DS18DBSL. As of September 2016. Among 14.4V/18V cordless driver drills made by leading power tool manufacturers (surveyed by Koki Holdings.)
*2: Compared to the previous models DS18DBEL
*3: Compared to the previous models DS14DBEL
*4: When drilling (in High Mode + Drill Mode) into SPF 76mm in thickness with a ø24mm (DS18DBSL) / ø20mm (DS14DBSL) auger bit.

Application (Drilling) Wood Steel
Wood Steel
DS18DBSL 50mm 13mm
DS14DBSL 45mm 13mm
  • Runtime per Charge (approx.) *1
Number of screws driven in wood (Low Mode + Drill Mode)
 DS14DBSL(5.0Ah/BSL1450)FApporox.167 screws*2, DS18DBSL(5.0Ah/BSL1850)FApporox.138 screws*3
*1: The values are for reference purposes. They vary according to the work material and conditions.
*2: ø8 x 75mm wood screws into American pine (with 6.5mm pilot holes)
*3: ø8 x 100mm wood screws into American pine (with 6.5mm pilot holes)
  • Compact Design with a Shorter Overall Length
27mm Shoter DS18DBSL / DS14DBSL: 175mm *
DS18DBEL / DS14DBEL: 202mmm
* The overall length varies by region.
  • Double-Molded, Large Clutch Dial
Image of large clutch dial is clearly readable even when it's worn out.
It's also easy to grip for better handling.
  • Feedback Speed Control
reduces torque (rpm) fluctuation in a low speed range and ensures stable operation.
This makes follow-up tightening and drill positioning easier.
(Continuous work within a low speed range may cause the temperature of the unit to rise, activating a temperature protection circuit and automatically stopping operation.)

Our Original Brushless Motor Technology

  • ► No wearing parts (carbon brushes, commutator, field coil)
  • ► Our original compact controller
  • Long Lifetime, Maintenance-Free
The brushless motor offers a significantly extended product life cycle by eliminating trouble including armature burnout, layer short or commutator wear even in severe work environments. Besides, no carbon brush replacement is required.


Drill Chuck 1.5 - 13mm (1/16 - 1/2") Keyless
Capacity Mild Steel 13mm (1/2")
Soft Wood 50mm (2") 45mm (1-3/4")
Wood Screw 8 x 100mm (#20 x 4") 8 x 75mm (#20 x 3")
Machine Screw 6mm (1/4")
Battery Voltage 18V 14.4V
No Load Speed High 0 - 1,800/min. 0 - 1,500/min.
Low 0 - 400/min. 0 - 350/min.
Max Torque Hard 70Nm (620in-lbs.) 60Nm (530in-lbs.)
Soft 40Nm (354in-lbs.) 35Nm (310in-lbs.)
Torque Setting 1.0 - 4.5Nm (9 - 40in-lbs.)
Overall Length *1 175mm (6-7/8")
Weight *2 1.6kg (3.5lbs.)
(with BSL1830C)
1.6kg (3.5lbs.)
(with BSL1430C)
Vibration Total Values
(triax vector sum) *3
Drilling into Metal Vibration Emission Value ah, ID < 2.5m/s2
Uncertainty K = 1.5m/s2
Standard Accessories *4 2 Batteries (BSL1850, BSL1830C or BSL1830),
Charger (UC18YFSL, UC18YSL3 or UC18YKSL)
2 Batteries (BSL1450, BSL1430C or BSL1430),
Charger (UC18YFSL or UC18YKSL)
Driver Bit, Battery Cover, Carrying Case

*1: The overall length varies by region.
*2: According to EPTA-Procedure 01/2003.
*3: Vibration total values (triax vector sum) were measured according to EN60745-2-1.
*4: The included batteries and charger vary by country or area.

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