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C

omparison of products

F

eatures and benefits

P 2 / 5 

Model 6991D : 9.5mm (3/8") square drive type 
Model 6992D : 12.7mm (1/2") square drive type

The lightest weight in each class
  Model 6991D : 1.3 Kg (including any of battery 9122, 9134 or 9135)
  Model 6992D : 1.4 Kg (including any of battery 9122 or 9135)

9.5mm square drive 
for Mod. 6991D 

12.7mm square drive
for Mod. 6992D 

Magnesium alloyed 
hammer case.

Easily operateable variable 
speed control switch

Set plate (optional accessory) 
can be attached
for the battery without 
push button.

High capacity battery 9135 with 3.0Ah
can be used.

Palm-fitly, Soft Grip

Newly designed D28 type motor
with the following features
 * more compact and light weight
 * Externally accessible brush
 * Replaceable armature
 * Effective cooling  

Push Button for Reversing

More compactly designed body

Refer to the comparisons listed 
below. 

Model No.

Specification

Square drive : mm ( " )

Manufacturer

No load speed : (min 

-1

= rpm)

Blows per min : (min 

-1

= bpm).

Equipped motor

Max. fastening torque  (N.m)

Externally accessible brush

Overall length : mm

Net weight :Kg  (lbs )

MAKITA

6991D

6909D

6907D

0 - 2,300

0 - 2,200

0 - 2,000

0 - 3,000

0 - 2,800

0 - 2,600

D28-15

D31- 16

RS750

100

88

69

Yes

Yes

No

168 (6-5/8)

170 (6-11/16)

185 (7-9/32)

1.3 (2.9)

1.4 (3.1)

1.3 (2.9)

9.5mm (3/8") square drive type models

9.5 (3/8)

9.5 (3/8)

9.5 (3/8)

Model No.

Specification

Square drive : mm ( " )

Manufacturer

No load speed : (min 

-1

= rpm)

Blows per min : (min 

-1

= bpm).

Equipped motor

Max. fastening torque  (N.m)

Externally accessible brush

Overall length : mm ( " )

Net weight :Kg  (lbs )

MAKITA

6992D

Model A-1

0 - 2,300

0 - 2,200

0 - 3,000

0 - 2,900

D28-15

100

98

Yes

Yes

176 (6-59/64)

181 (7-1/8)

1.4 (3.1)

1.6 (3.6)

12.7mm (1/2") square drive type models

12.7 (1/2)

12.7 (1/2)

Competitor A

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