Parts Name (SB Tapper)

SB-Tapper Specifications

6%&SELF BACKEY SB-400C/SB-650C

6%&❶Model

SB-400C

SB-650C

Tapping Capacity

0.9-2.6mm

2.0-4.0mm

Chuck Diameter

Up to 4mm

❷Controller SBC-1

Up to 6.5mm

N・m

N・m
20.6

❸

Operation Manual

0.5

Range for
TorqueAdjustment
for Safe Load（As of April 2021）❹HIOS Inc. 1-35-1 Oshiage, Sumida-ku Tokyo, Japan 131-0045

1.5

0.4

TorqueGuideline

10.3
0.2

0.5

0.1

0.3
1❺N・ｍ (kgf・cm)

345

16234

Torque Scale

0.1-0.55 (1-5.5)

0.3-1.6 (3-16)

1,000

900

SELF BACKEY is a tool to thread the inner surface of a hole that is roughly
drilled in advance.

❶ Driver Cord
❷ Hanger

Unloaded
Rotation Speed(r.p.m) ±10%670600

SELF BACKEY is most suitable for finishing touches after tapping because
it can easily remove the burr, paint or adhesive from a screw hole when
it is difficult to remove.

❸ Joint Ring

Grip Diameter

Φ32.5

Φ37Total Length

220mm

295mm

Weight450g❹ FOR/REV Switch

Excess coating agent
can be removed by tapping.

Excess coating agent remain：CCW❻❼：CW❺ TriggerHI
LOW750g

Compatible Power Supply

T-45BL❻ Torque Scales for Adjustment❼ Torque Adjustment Nut❽Material

312135+30V0VFG

DRIVER
1234512345+30V
T-UP0VFWD
FGNever apply oil inside the driver. Unnecessary greasing may cause failure.
Disconnect power supply to the driver before installing or removing atap. If you install or remove a tap while the driver is powered, it may
injure your fingers or arms.

5Handling

4SB-650C

SBC-1SB-400C

SB - TAPPER❷Please use the taps and other tools that are commercially available.
❶ Power Supply Connecting Cord
Connect to power supply.
❷ Screwdriver Connector
Connect driver cord with tapper.

Chuck KeyΦ
Stopper
1 eachΦ2.0/2.3/2.6 mm

Φ2.6/3.0/4.0 mm

Definition of terms
SELF BACKEY is mentioned as the “driver” in this operation manual.
A bottomed hole is sometimes called a sac hole or a blind hole. In thismanual, we call it "sac hole".

POWER IN

Automatically reverses and comes out as soon as tapping is complete tothe predetermined depth, regardless of the hole is bottomed or through.
Prevents accidental damage to taps by automatically turning back when
excess burden to the tap is applied due to the wrong insert angle orunbalance between the tap and diameter of to the pilot hole.
Since the tool is manually held while being operated, the tapping process
is performed only through its rotational running without thrust in feedingor reversing direction. This way, risks of loss in thread accuracy or accidental
damage to the tap because of inconsistency of rotation caused by thedifference between feeding thrust and reversing thrust can be eliminated.
The safety limit of torque can be precisely adjusted arbitrarily; specificallyideal for tapping threads of minute pitch or diameter.
The depth (automatic reversing limit) can be set as desired.

❶Accessories〜〜Features

SBC-1 Specifications❽ Chuck

Material

Dimensions (W×D×H)

70×100×42mm

WeightApprox. 153.5g

Accessories

Bracket×2、Double sided tape×2、Manual×1

Installation
Either use brackets or double-sided tape.

Drivers Cord（5P）
1.5m2m5Torque Scale

ET-A056 21A

About SELF BACKEY26

Connection and Installation

Attach the Tap

1 Connect SBC-1 with Power Supply.

1 Fix the stopper on the tap.

Use joint ring to lock power supply.

Adjust Torque

Loose the screw of the stopper and fix it on the tap.

2 Fix the stopper at the target depth (where automatic
reversing occurs).

When the tap end touches the sac hole bottom or the stopper
touches the material of a through hole, if strong resistance isapplied to the tap, the thread may be damaged or the tap may bebroken. In addition, excessive torque may occur due to unbalance
between the tap and the diameter of the pilot hole, or slanted
insertion of the tap. Therefore, it is necessary to promptly detect
excessive torque for automatic reverse rotation.

Cautiontarget depth

2 Connect Driver Cord with SB Tapper and SBC-1.
Use joint ring to lock driver cord.

Select a smooth section of the tap where there is no thread
and fix the stopper.

3 Attach the tap.

Always start adjustment from low torque. (The clutch should
start even when low torque is selected.)
Do not start actual operation without testing. It may cause abroken tap or other damage. Sufficient testing is required before
actual operation.

1 Set the torque of the driver to low.
▶
Chuck end
4

3 Connect power cable with electric outlet, then turn on.

Use a chuck key to open the chuck wide for the tap to beinserted. When you turn the key clockwise, the chuck end
closes. When you turn the key counterclockwise, the chuckend opens.

Operation the Driver▶

FOR/REV Rotation

6
2

2 Conduct a tapping to a pilot hole as a test.
3 If the clutch moves before the tap reaches the target
position, fasten the adjustment nut a little; repeat
testing to determine the ideal position.

1 Select FOR of the FOR/REV SW.
4Power Supply Output

62

Normally, set HI (30V). If you would like a slow RPM, please switch
to LOW (20V).

4 Repeat steps 2 and 3 for adjustment.
2 Automatically returns after it finishes cutting the threadin the hole.
3 When you release the trigger, the driver stops.
If you happen to release the trigger before the tap hascompletely come out, you need to perform this operation.
Select REV and start rotation. When the stopper reaches thespecified position, the driver automatically starts reverse
rotation and the tap comes out.

When it is confirmed that the tap has reached the target
position and reversed automatically, you can start the actual
operation.

Overload
When overload, it beeps and reverses. Do not release lever until tap
is back in the first position.