Made in Japan
Manufacturer: Nitto Kohki
Model : ATRA-100A

 

ARA-100A Model Specifications

Specification	Unit	Value
Power Source (Single Phase)	–	220 – 240 V AC, 50/60 Hz

Electric Drill

Specification	Unit	Value
Rated Power Consumption	W	1800
Rated Current	A	8.2
No-load Speed	min⁻¹ (rpm)	110-210 / 330 – 660
Morse Taper No.	–	MT3
Rated Duty	min	30

Magnet

Specification	Unit	Value
Magnet Power Consumption	W	80
Magnet Holding Power	N (kgf)	17000 (1733)
Magnet Dimensions	mm	110 × 220

Hole Capacity

Cutter Type	Hole Diameter (mm)	Plate Thickness (mm)
One-touch Type JETBROACH 35L	17.5 to 40	13 to 35
One-touch Type JETBROACH 50L	17.5 to 50	13 to 50
One-touch Type JETBROACH 75L	17.5 to 50	13 to 75
JETBROACH 75L	50 to 100	13 to 75
One-touch Type HI-BROACH 25L	17.5 to 35	13 to 25
One-touch Type HI-BROACH 50L	18 to 35	13 to 50
Twist Drill	Max. 32 mm dia.	–

Cutter Position Adjustment

Specification	Unit	Value
Straight Front to Back	mm	20
Swivel Angle	–	30″

General Specifications

Specification	Unit	Value
Power Cord Length	m	50
Mass (Weight)	kg	30

Accessories Included

• Pilot Pin 12075
• Side Handle
• 2.5 mm Hex. Socket Screw Key
• 5 mm Hex. Socket Screw Key
• 6 mm Hex. Socket Screw Key
• 8 mm Hex. Socket Screw Key
• Drill Drift
• 7 x 8 mm Spanner
• Safety Chain
• Guard
• Oil Tank
• Oil Tank Bracket
• 3 pieces of Rod Handle

Optional Accessories

Load Indication

The load indicator (LED) indicates the condition of the load with different colors of LED light:

• Green LED → The load on the drill motor is normal.
• Red LED → The load on the drill motor is close to overload.
• Blinking Red LED → The drill motor is overloaded.

Automatic Stop Function

As the drilling load increases, the load indicator will change from green to red.

• If excessive feeding force is applied, the LED will rapidly blink red, and the drill motor will slow down and stop.
• Once the motor has stopped completely, the LED will blink slowly in green.
• To resume rotation, release the load, turn off the switch, then turn it back on.

Automatic Restart Function

• If the load is released while the load indicator is blinking red, the drill motor will automatically resume rotation.
• 

Built-in Motion Sensor

• If lateral movement or excess vibration occurs during drilling, the drill motor will stop instantly, and the LED will blink red.
• To resume operation, turn the magnet switch off and on.

Fail-safe Restart

• If power is re-supplied after an accidental shutdown, the magnetic field will activate, but the drill will not restart automatically.
• The LED will blink green at this stage.
• Drilling can only continue after turning on the drill switch.

Magnet Open-circuit Sensor

• The drill will not start unless the magnetic field is active.
• If a malfunction occurs in the magnet, the LED will blink red slowly, and the drill motor will not rotate.

Features

Reversible Feed Handles

• Feed handles can be positioned on the right or left-hand side for ease of drilling.
• When changing the feed handle position, the oil tank must be positioned opposite to the feed handles.
• 

Drilling Position Adjustment

• The drill position can be adjusted back and forth by 20 mm.
• The drill can be pivoted 15 degrees to the left or right, allowing for a total swivel range of 30 degrees.
• The clamp lever can be positioned for left-hand or right-hand operation.
•