Electric Screwdriver

VZ Series
Operation Manual(September 2020)

Transformerless Screwdriver
100V
VZ-1510/VZ-1510PS
VZ-1812/VZ-1812PS
VZ-1820/VZ-1820PS/VZ-3012/VZ-3012PS/
VZ-3007/VZ-3007PS
VZ-4506/VZ-4506PS with Shockless Stand

120V
VZ-1820/VZ-1820PS/VZ-3012/VZ-3012PS/
VZ-4506/VZ-4506PS

220-240V
VZ-1812/VZ-1812PS/VZ-3007/VZ-3007PS/
VZ-4504/VZ-4504PS

ET-A003 20A

SAVE THESE INSTRUCTIONS

We thank you for your purchase of Hios Electric Screw Driver.

WARNING

When using electric tools, basic safety precautions should
always be followed to reduce the risk of fire, electric shock andpersonal injury, including the following:

READ ALL INSTRUCTIONS
1. Keep Work Area Clean.
Cluttered areas and benches invite injuries.
2. Consider Work Area Environment.
Don't expose tool to rain. Don't use tool in damp or wetlocations.
Keep work area well lit.
Never use the tool at an area with dangerous object. (gasoline,benzene, thinner, gas glue, etc.)
3. Secure Work.
Use clamps or vise to hold work. It's safer than using your handand it free both hands to operate tool.
4. Guard Against Electric Shock.
Prevent body contact with grounded surfaces, for example:
pipes, radiators, ranges, refrigerator enclosures.
5. Keep Children Away.
Do not let visitors contact tool. All visitors should be kept awayfrom work area.
6. Store Idle Tools.
When not in use, tools should be stored in dry, and high orlocked-up place out of reach of children.
7. Don't Force Tool.
It will do the job better and safer at the rate for which it wasintended.
8. Remove Adjusting Keys And Wrenches.
From habit of checking to see that keys and adjustingwrenches are removed from tool before turning it on.
9. Use Right Tool.
Use the tool for the proper work against its power andintended purpose.

-2-10. Dress Properly.
Do not wear loose clothing or jewelry. They can be caught
moving parts.
Wear protective hair covering to contain long hair.
11. Use Safety Glasses.
Also use face or dust mask if operation is dusty.
12. Don't Abuse Cord.
Never carry tool by cord or yank it to disconnect fromreceptacle.
Keep cord from heat, oil and sharp edges.
13. Don't Overreach.
Keep proper footing and balance at all times.
14. Maintain Tools With Care.
Keep tools sharp and clean for better and safer performance.
Follow instructions for lubricating and changing accessories.
To use the tool for long time safely, perform the periodical
inspection for the tool and if damaged, it must be repaired byauthorized service facility.
Keep hand dry, clean and free from oil and grease.
Inspect extension cords periodically and replace if damaged.
15. Disconnect Tools.
When not in use such as attaching and detaching the bit,changing the Carbon Brush, inspection or cleaning, etc.,
disconnect tool.
16. Avoid Unintentional Starting.
Be sure switch is off when plugging in.
Don't carry tool with finger on switch.
16A. Extension Cords.
Make sure your extension cords is in good condition. Whenusing an extension cord, be sure to use one heavy enough tocarry the current your product will draw. An undersized cord
will cause a drop in line voltage resulting in loss of power andover heating. Table 1 (See Table 1) shows the correct size touse depending on cord length and nameplate ampere rating.
If in doubt, use the next heavier gage. The smaller the gage
number, the heavier the cord.

-3-TABLE 1MINIMUM GAGE FOR CORD SETSa
Volts			Total Length of Cord in Feet

120V

0 - 2526 - 50

51 - 100

101 - 150

240V

0 - 5051 - 100

101 - 200

201 - 300

AWG
Ampere Rating
MoreNot More

Thana

Than

0-

618

16

16

146-

1018

16

14

121210-

1216

16

1412-

161412

Not Recommended

Only the applicable parts of the Table needs to be included. For instance, a 120-volt
product need not include the 240-volt heading.

17. Stay Alert.
Watch what you are doing. Use common sense. Do not operate
tool when you are tired.
18. Check Damaged Parts.
Before further use of the tool, a guard or other part that isdamaged should be carefully checked to determine that it will
operate properly and perform its intended function. Check foralignment of moving part, binding of moving parts, breakageof parts, mounting and any other conditions that may affect its
operation.
A guard or other part that is damaged should be properlyrepaired or replaced by an authorized service man orauthorized service facility unless otherwise indicatedelsewhere in this instruction manual.
19. Outdoor Use Extension Cords.
When tool is used outdoors, use only extension cords intended
for use outdoors and so marked.

-4-

GROUNDING INSTRUCTIONS
The tool should be grounded while in use to protect theoperator from electric shock.
The tool is equipped with a three-conductor cord and threeprong grounding-type plug to fit the proper grounding-type
receptacle.
The green (or green and yellow) conductor in the cord is thegrounding wire.
Never connect the green (or green and yellow) wire to a liveterminal.
If your unit is for use on less than 150 V, it has a plug that looks
like that shown in Figure 1.
An adapter (see Figure 3) is available for connecting Figure
1-Type Plug to 2-prong receptacles.

COVER OF GROUNDEDOUTLET BOX
GROUNDING PIN

Figure 1

Figure 2

ADAPTERGROUNDING
MEANS

Figure 3

The green colored rigid grounding strap must be connected topermanent ground such as to a properly grounded outlet box.
For safe use of adapters, the outlet box must be grounded.
If there is any doubt, have a qualified electrician checkconnections.
Use only 3-wire extension cords that have 3-prong grounding
type plugs and 3 pole receptacles that accept the controllers
plug. Replace or repair damaged cords.

-5-CAUTIONS IN OPERATION
1. This Screw Driver is integral unit consisting of Screw Driver partsand cord parts.
If any trouble occur, don't take a part off the tool. Stop theoperation and have the repair it immediately.
2. Never lubricate aerosol oil and the like. Otherwise it may cause
the expensive repair.
3. Do not drop, hit or abuse the tool. Otherwise it may cause sometrouble such as crack or damage.
4. Never use the chemicals to wipe the body cover.
5. Use under the proper voltage. Never use under the highervoltage.
6. Do not pull the AC cord when unplug the AC plug. Otherwise it
may cause the breaking of wire.
7. To avoid trailing the AC cord on floor, use the Spring Balancer tohang the AC cord.
8. For the safety use, do not set the torque adjusting nut at higher
than 10 on the torque adjusting scale. (Ref. to P.14)
9. Use the tool intermittently which describes on the tool: (ex: 0.5sec. on / 3.5 sec. off )10. Do not tighten more than 900 pcs of tapping screws per 60
minutes.
11. This tool is not for tightening up wood screw.
12. During the motor is running, never change the forward ←→reverse direction immediately.
13. Whenever the tool is not in use, set the start switch andForward/off/Reverse switch to "OFF" position and unplug the AC
cord plug.
14. Use of model VZ-4506PS at high torque settings brings avery high impact to the operator's hand. Please use this toolwith caution, as Carpal Tunnel Syndrome (CTS) or other trauma
disorders may result.
HIOS shock-Resistant Stand is available to absorb the torque to theoperator's hand during operation.

SUMMARY
This VZ Series Screw Driver is a Control Function Built-in Type.
The body is light and designed to decrease the vibration and noise.
It is possible to use hexagonal bit with opposite side of 6.35 mm (1/4inch. HEX.)
Also, you can select the starting system (Lever Start and Push toStart) in accordance with the work.
-6-■ Specifications*: Numeric data in ( ) is weight of push-to-start driver.

AC Input Power 100V
ModelHEX

HIOS

MachineScrew
Tapping
Screw
Grip
LengthPower Consumption
Output Torque N • mRange
lbf • in
Torque Switching
Unloaded Rotation Speed(r.p.m) ±10%
Screw Size(mm)Dimensions(mm)*Weight (g)Bit Drive
Power Cord

VZ-1812
VZ-1812PS
40W
0.4 - 1.8
3.5 - 16

2,000

700

1,200

VZ-3012
VZ-3012PS
40W
0.9 - 3
7.8 - 26600

VZ-4506
VZ-4506PS
40W
1 - 4.5
8.8 - 39

VZ-1820
VZ-3007
VZ-1820PS
VZ-3007PS
40W
40W
0.4 - 1.8
0.9 - 3
3.5 - 16
7.8 - 26
Stepless adjustment

VZ-1510
VZ-1510PS
26W
0.15 - 1.5
1.3 - 131,200

3.0 - 4.0

1,000

3.0 - 4.0

∅37.8
276 (280)
660 (660)

3.0 - 5.0

3.0 - 4.0

∅37.8
276 (280)
660 (660)
H5 & 5HEX

1/4HEX

3.0 - 5.0

2.6 - 3.0∅37.8
276 (280)
660 (660)
H5 & 5HEX

1/4HEX3m

3.0 - 5.0
2.6 - 3.0∅37.8
276 (280)
660 (660)
H5 & 5HEX

1/4HEX

3m

2.6 - 4.0

∅37.8276 (280)660 (660)
H5 & 5HEX

1/4HEX

3m

2.6 - 4.0
2.0 - 3.0

1/4HEX

3m–3m

2.0 - 4.0∅33255 (243)497 (502)
H45HEXor 1/4HEX
3m-7-AC Input Power 120V
ModelHIOSHEXPower ConsumptionN•m
OutputTorque Range lbf • in
Torque Switching
Unloaded Rotation
Speed (r.p.m) ±10%MachineScrew
Screw Size(mm)
Tapping
Screw
Grip
LengthDimensions(mm)*Weight (g)Bit Drive
Power Cord

VZ-1820
VZ-3012
VZ-4506
VZ-1820PS
VZ-3012PS
VZ-4506PS
60W
0.9 - 31 - 4.5
7.8 - 26
8.8 - 39Stepless adjustment
1,200

600

0.4 - 1.8
3.5 - 162,000

3.0 - 5.0
3.0 - 4.0

3.0 - 5.0
3.0 - 4.0

∅37.8276(280)
660(660)

2.6 - 4.0
2.6 - 3.0

∅37.8276(280)
660(660)
H5 & 5HEX
1/4HEX
3m–
1/4HEX3m∅37.8276(280)
660(660)
H5 & 5HEX
1/4HEX
3m-8-700

400

2.6 - 4.0

1,200

3.0 - 4.0

∅37.8276(280)
660(660)–
1/4HEX3m

3.0 - 5.0

2.6 - 3.0

∅37.8276(280)
660(660)
H5 & 5HEX
1/4HEX3m

3.0 - 5.0

∅37.8276(280)
660(660)
H5 & 5HEX
1/4HEX3m

2.6 - 4.0

0.4 - 1.8
3.5 - 16

VZ-1812
VZ-3007
VZ-4504
VZ-1812PS
VZ-3007PS
VZ-4504PS
72W
0.9 - 3
1 - 4.5
7.8 - 26
8.8 - 39
Stepless adjustment

AC Input Power 220-240V
ModelHIOSHEXPower Consumption
Output Torque N • m
Range
lbf • in
Torque Switching
Unloaded Rotation
Speed (r.p.m) ±10%MachineScrew
Screw Size(mm)Tapping
Screw
Grip
LengthDimensions(mm)*Weight (g)Bit Drive
Power Cord-9-1. Parts Name
Lever startPush to startAC plug
Power Cable

HangerCarbonbrush cap

HangerCarbonbrush cap
Carbon brush cap

Forward/off/reverse switch
Carbonbrush cap

Forward/off/reverse switch
Switch lever

Switch lever

Adjusting bolt
(Torque adjust scale)
Torque adjust
scale nut

Torque adjusting bolt
(Torque adjusting scale)
Torque adjusting nut

The Protective
Cover can beremover fromthe driver by
twisting it right.

Joint shaft collar
Bit

ACCESSORIES• Bits• Torque adjusting spring (for VZ-1510, VZ-1510PS)• Carbon brushes• Screw for adjustment M 2.6 (Phillips screw) for VZ-1812, VZ1812PS, VZ-1820, VZ-1820PS, VZ-3007, VZ-3007PS, VZ-3012,VZ-3012PS• 3PIN to 2PIN power cable adaptor is attached (for VZ-1510,VZ-1510PS)- 10 -HOW TO USE■ OPERATION
1. Insert the Bit into the Joint Shaft Collar of the Screwdriver.
2. Turn the Torque Adjusting Nut and adjust the tightening
torque.
3. Make sure the Forward/Off/Reverse Switch is in the "OFF"position.
4. Insert the AC Plug into the AC socket.
5. Set the Forward/Off/Reverse Switch at the "FORWARD"
position.
(Caution)
Whenever the direction of rotation is changed, make sure theForward/Off/Reverse Switch is in the "OFF" position.
6. Fit the Bit to the recession of a screw head, then push theSwitch Lever to start the motor.
• Push to Start System∙∙∙ Motor automatically starts by pressing
the tip of Bit against the recession of a screw head.
7. The clutch will automatically stop the rotation of motor
when the torque reaches to the fixed value.
Release the Switch Lever to put the Bit off the screw. By therepeat of these operation, screw is tightened continuously.
• Push to Start System is automatically released by moving theBit away from screw head.
8. To loosen the tightened screw, turn the Forward/Off/Reverse
Switch to "REVERSE" position.
• When the screw can not be loosened, tighten up the TorqueAdjusting Nut.

■ Push-to-Start Type
Both the models of Driver have Push-to-Start type that isdesigned to start by causing a proper thrusting pressure on
the bit in place of pressing the Switch Lever by the forefinger.
Drivers of this type are identified by the additional sign PS
following the principal Push-to-Start type models. The PS type,therefore, has no lever for starting. All other functions remainsame as the principal type.
Users of this type is specifically cautioned to disconnect thecord to shut off power when handling the Quick Change Collet
for replacing bit to avoid danger from surprising starting.

- 11 -Attaching the driver bit

Caution

Always move the driver normal/reverse
selector switch to the “OFF” position, orremove the drive power plug from thepower outlet so that it is not powered
when attaching or removing driver bits.
Please take note that if the push-startdriver is powered, even the slightest push
can cause the driver to rotate and cause
unexpected injuries.

• To attach the driver bit, push
the joint shaft collar down
towards the driver body andinsert the driver bit. Check thatthe driver bit is firmly locked
after it has been attached.
• The VZ-1812, VZ-1820, VZ-3007
and VZ-3012 series has a chuck
to suit both the HIOS shank H5and the 5 mm wide hexagonal
bit (5HEX). Take note of thefollowing precautions whenusing the hexagonal bit.

Joint shaft collar• Always use our standard HIOS shank type bits H4 and H5.

■ Types of driver bits that can be used with the VZ1812, VZ-1820, VZ-3007 and VZ-3012 series

HIOS Driver Bit H5H5 (∅5)
60mm

5mm wide Hexagonal W Bit
5mm wide
16mm- 12 -(Caution)
When using the HIOS
driver bit ∅5 or 5 mm
wide Hexagonal W Bit,
check that the Phillips
adjustment screw
within the driver bodyhas not been tightened.
*If the Phillips adjustment screw
has been tightened the driver bit
may drop out.

5mm wide Hexagonal Bit
5mm wide
14mm(Caution)
When using the 5 mm wideHexagonal W Bit, tighten
the Phillips adjustment
screw (supplied screw)
tightly into the driver bit
chuck.
* If the Phillips adjustment screw is
not tightened for enough, the driver
bit will not be locked and may resultin unreliable screw fastening.

Use the Phillips
adjustment screw (M 2.6)
Tighten the Phillips
adjustment screw properly■ Types of driver bits that can be used with the VZ4504, VZ-4504PS, VZ-4506 and VZ-4506PS.
• For safe operation use bits conforming to the standards
indicated in the diagram on the left below. The diagrams on
the right indicate bits that cannot be used with the Screwdriver.

Bits for use

Bits unsuitable for driver

59.0

9.0

6.3

Use size 6.35mm hexagonalbits whose
length from thepoint to thebearing grooveare 9 mm.

Double recess
bearing groove

W bit- 13 -Bits whose
length from thepoint to thebearing groove
is not 9 mm.

■ How to adjust the torque

The Torque Adjusting Scale does not indicate the torque value
directly. The torque value of each scale is indicated by theApproximate Guidance of Output Torque on P.14.
Sometimes, there may be difference between fixed value
and actual tightening torque by the condition of screw andmaterials. Please use this Approximate Guidance to get theapproximate torque value.
(1) Referring the Approximate Guidance of Output Torque,decide the position of Torque Adjusting Nut in the Torque
Adjusting Scale.
(2) Rotate the Torque Adjusting Nut and set the right upper ofdecided graduation.
(3) Start the motor and tighten the screw. Check the conditionof tightening screw.
(4) If the tightening is not enough, tighten up the Torque
Adjusting Nut.
In case of opposite, loosen it. Repeating the adjustment, findthe most suitable point.
•The VZ-1510 (VZ-1510PS) Electric Screwdriver have ‘Doublenut system’ (Nut fixing ring and Torque adjusting nut) to avoid
loosening from shock or vibration to the driver. To adjust those
two nuts, follows (1) to (3) steps below.

(1) At first, stop the Nut fixing ring uppersurface to fit the graduation, if you
want to adjust.
(2) Then turn the Torque adjusting nut so
as to push up the Nut fixing ring.
(3) Lastly, to avoid the loosening of theTorque adjusting nut strongly fasten
the Nut fixing ring by holding theTorque adjusting nut.

■ We recommend to use the HIOS Torque meter Tools
to set the torque of Screw Driver or to check thetorque of screw. (HP, HDP series)• To set the torque of Electric Screw Driver or to check themeasurement tools (Torque Driver, etc.) ∙∙∙ HP Type• To measure the loosening torque or tightening torque ∙∙∙HDP
Type- 14 -

■ How to change the Carbon Brush(Caution)
Whenever changing the Carbon Brush, AC plug should beunplugged.
• Unscrew the slotted Carbon Brush Cap by Slotted Screw ( - )Driver and remove it.
• When the Carbon Brush Cap is changed, pay attention to thedirection of brush surface (concavity). Insert the Brush to fit its
surface to the Commutator's.
• Slot on the side of Carbon Brush indicates Limit for Use.
Change the Brush when it is abraded over the Slot. To keep thegood condition, we recommend to change it earlier.
• Be careful so as not to tighten the Carbon Brush Cap toostrongly.

Concave■ List carbon brushes and compatible screwdriver (1pair = 2pcs)
Applicable models

Oder Cord

VZ-1510(including PS type)

VZ-1820, VZ-3012, VZ-3007, VZ-4506(including PS type)

ACL10-0490

VZ18-0480- 15 -■ Approximate Guidance of Output TorqueVZ-1510
VZ-1510PS

N·m

1.5N·mS

1R

0.5

Torque Adjustment Scale(Upper edge of Nut)
1 2 3 4 5 6 7 8 9Torque Scale

VZ-1820
VZ-1820PS

VZ-3012
VZ-3012PS

332.5

2.5

22W

1.5

1.5

110.5

0.5

1 2 3 4 5 6 7 8 9 10Torque Scale

VZ-4504
VZ-4504PS
4.5Bl

1 2 3 4 5 6 7 8 9 10Torque Scale

VZ-4506
VZ-4506PS

Y

4.544

3.5

3.5332.5

2.5

22

1.5

1.5

Y

S: Silver
R: Red
Bl: BlackW: White
Y: Yellow

111 2 3 4 5 6 7 8 9 10Torque Scale

1 2 3 4 5 6 7 8 9 10Torque Scale- 16 -

VZ-1812
VZ-1812PS

VZ-3007
VZ-3007PS

332.5

2.5

2W

Bl

2

1.5

1.5

11

0.5

0.5

1 2 3 4 5 6 7 8 9 10Torque Scale

1 2 3 4 5 6 7 8 9 10Torque Scale- 17 -

HIOS Inc.
1-35-1 Oshiage, Sumida-ku Tokyo, Japan 131-0045
TEL: 81-3-6661-8821 FAX: 81-3-6661-8828