C
omparison of products
P 3 / 6
Manufacturer
Model No.
Voltage ( V )
No load speed : (min
-1
= rpm)
Blows per min : (min
-1
= bpm)
0 - 2,500
0 - 3,000
0 - 2,200
0 - 2,800
Max. fastening torque
Externally accessible brush
Material of
Hammer case
Overall length
Net weight
Kg.
On catalog
Measured
MAKITA
BTW070
6909D
Magnesium
Aluminum
Yes
Yes
162
170
1.0
1.4
1.07
1.49
9.6
9.6
65
88
C
omparison of working amount and speed
Fastening tapping
screw Ø5x16mm
in the screw hole
of Ø4.2mm bored
in pp. plate
Fastening tapping
screw Ø6x16mm
in the screw hole
of Ø5.5mm bored
in steel plate
MAKITA
BTW070
6909D
Working condition
Manufacturer
Model No.
Fastening speed
sec./ pc.
Fastening No. of screws
per one full charged
battery ( pcs. )
Fastening No. of screws
per one full charged
battery ( pcs. )
Fastening speed
sec./ pc.
0.63
0.47
415
712
326
456
0.85
0.81
< Note > *The figures listed below may change depending on the condition of battery, room temperature, charger, etc.
*The figures of BTW070 shows the result, until the auto-stop system functions.
(In other words, the battery is discharged 80% of its own capacity.)
*The same of model 6909D shows the result, until the battery is discharged completely.
The relation between fastening torque and fastening time
Fastening torque for standard bolt M6
Fastening torque for standard bolt M8
T
orque (N.m)
Time (sec.)
0
15
10
5
0
0.2
0.4
0.6
0.8
1
T
orque (N.m)
Time (sec.)
0
1
1.5
2
2.5
3
0
0.5
5
10
15
20
25
Fastening torque for standard bolt M10
T
orque (N.m)
Time (sec.)
10
20
30
40
50
60
1
2
3
4
5
BTD040
BTD040
BTW070
BTW070
BTD040
BTW070
