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What's New?
WHEEL COVER HOLDER
$3.63
Power Tool Parts Home
»
DeWALT Parts
»
DeWALT Sander / Polisher Parts
»
DeWALT DW421 TYPE 1 Random Orbit Sander Parts
DeWALT DW421 TYPE 1 Random Orbit Sander Parts
Sandpaper Discs for This Model
Larger Diagram View
DW421K_TYPE_1 PDF Parts Diagram (Larger View)
Tool Info
The DW421 Sander has a "Controlled Finishing System" that maintains the sander speed. This keeps gouging to a minimum, especially during start up. The DW421 is equipped with a 2.0 amp motor that operates at 12,000 orbits per minute, providing enough power and speed for excellent sanding results. With many sanders vibration is a problem with prolonged use. The DW421 however, has a dual-plane counter-balanced fan which really helps cut down on vibration and user fatigue. Dust collection is no problem with the standard dust bag, or you can take off the dust bag and connect the adapter to a shop vacuum.
Specifications:
Amps
2.0 Amps
Speed
12,000 OPM
Orbit Diameter
3/32"
Dust Collection
Yes
Paper Size/Type
5" 8-Hole Hook & Loop
SFPM
N/A
Dust Sealed Switch
Yes
Tool Weight
3.0 lbs
Reviews
by David F.
Date Added: Wednesday 16 July, 2008
The DW421 is a great sander. It is lightweight, but still has lots of power. I have really liked the grip and the feel of the tool. When you put a heavy grit sandpaper on, it just feels like you can remove a lot of material quickly. It seems to have a solid construction. I have had good luck with DeWALT tools. Most of the ones that I have owned have been reliable.
From other reviews that I have read, this sander uses a "controlled finishing system." As far as I know, this just means that a pad brake will keep the pad from spinning when it is not pressed against the material.
My only two gripes with this tool are the dust collection system and the vibration during use. Several times the whole dust collection canister has slid off altogether. It is a friction fit design (why they would think this would be enough, I am not sure.) It seems like they could have easily put on a some type of locking mechanism that would keep it secured to the base of the sander. The vibration is not horrible, but it is noticeable after using the sander for a long time. My hands have that slightly numb feeling when I am done using it.
I really like this sander, but with a few small changes DeWALT could have made a better product.
Rating:
[4 of 5 Stars!]
Click here to write a review for this tool.
1.
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2.
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Replacement Parts
Compatible with DeWALT DW421 TYPE 1 Random Orbit Sander
Fig # +
Part #
Image
Part Name
Availability
Price
Enter Order Qty.
1
578863-03
ARMATURE WITH BEARINGS [
Info
]
Ships in 1-2 weeks
$29.90
2
807254-08
FIELD [
Info
]
Ships in 1-2 weeks
$22.55
3
445861-03
BRUSH [
Info
]
Notes: Sold Individually
In stock
54 available
$3.60
4
445860-00
BRUSH SPRING [
Info
]
In stock
20 available
$2.25
5
449899-05
RING,BRUSH [
Info
]
Ships in 1-2 weeks
$12.21
6
144960-00
SWITCH (ON-OFF) [
Info
]
In stock
7 available
$3.32
7
330072-97
CORD/10 FT/18-2 [
Info
]
In stock
3 available
$14.65
8
330003-17
BALL BEARING [
Info
]
In stock
6 available
$7.41
9
330003-03
BALL BEARING [
Info
]
Ships in 1-2 weeks
$7.84
10
616020-00
FAN [
Info
]
Ships in 1-2 weeks
$2.59
11
380382-00
CLAMSHELL SET [
Info
]
Ships in 1-2 weeks
$13.64
13
330005-01
CORD PROTECTOR [
Info
]
In stock
29 available
$3.50
14
380414-00
CLAMP,CORD [
Info
]
Ships in 1-2 weeks
$0.97
15
285252-00
CAP AND SCREWS [
Info
]
Ships in 1-2 weeks
$4.95
16
144989-00
LEAD ASSEMBLY [
Info
]
In stock
1 available
$0.85
Fig #
Part #
Image
Part Name
Availability
Price
17
445964-00
RECEPTACLE [
Info
]
In stock
7 available
$0.80
18
825209-00
TERMINAL [
Info
]
Ships in 1-2 weeks
$0.84
19
610078-00
CLAMSHELL SHROUD [
Info
]
Ships in 1-2 weeks
$5.76
21
286181-00
RETAINER [
Info
]
In stock
7 available
$4.49
22
603637-00
BRG. RETAINER [
Info
]
In stock
6 available
$1.86
23
330003-13
BEARING,BALL [
Info
]
In stock
10 available
$9.30
24-A
151281-06
SANDER PAD (HOOK & LOOP, 5 INCH, 8 VACUUM HOLES) [
Info
]
In stock
86 available
$13.75
24-B
151662-00
SANDER PAD (PSA-ADHESIVE BACK, 5 INCH, NO VACUUM HOLES) [
Info
]
In stock
9 available
$12.68
24-C
151281-00
SANDER PAD (PSA-ADHESIVE BACK, 5 INCH, 8 VACUUM HOLES) [
Info
]
In stock
21 available
$13.29
25
151549-00
BAFFLE [
Info
]
Ships in 1-2 weeks
$2.54
26
151553-00
DUST SEAL/BRAKE [
Info
]
In stock
19 available
$4.70
27
144983-07
COVER,SWITCH [
Info
]
Ships in 1-2 weeks
$1.41
28
608354-00
DUST BAG [
Info
]
In stock
34 available
$14.21
28
151655-00
SUPPORT,BAG [
Info
]
Ships in 1-2 weeks
$9.65
29
608354-00
DUST BAG [
Info
]
In stock
34 available
$14.21
Fig #
Part #
Image
Part Name
Availability
Price
30
56194-00
RING,O [
Info
]
In stock
11 available
$0.80
31
608354-00
DUST BAG [
Info
]
In stock
34 available
$14.21
31
152365-00
RING,O [
Info
]
Ships in 1-2 weeks
$0.85
32
700871-00
O RING [
Info
]
Ships in 1-2 weeks
$4.56
33
330019-11
SCREW [
Info
]
Backorder:
Unavailable until 11/06/2008
$0.85
34
98012-11
SCREW,MACHINE [
Info
]
Ships in 1-2 weeks
$0.85
35
383516-00
SCREW [
Info
]
In stock
13 available
$0.80
36
330019-02
SCREW,PLASTITE [
Info
]
Ships in 1-2 weeks
$0.84
37
330019-08
SCREW [
Info
]
Ships in 1-2 weeks
$0.85
38
330019-03
SCREW [
Info
]
Ships in 1-2 weeks
$0.85
39
330019-11
SCREW [
Info
]
Backorder:
Unavailable until 11/06/2008
$0.85
40
151652-00
WASHER,CONE [
Info
]
Ships in 1-2 weeks
$0.97
41
151649-00
LABEL,IDENT. [
Info
]
Ships in 1-2 weeks
$0.85
43
151669-00
RING,RETAINING [
Info
]
Ships in 1-2 weeks
$0.97
44
144956-00
NUT [
Info
]
Ships in 1-2 weeks
$0.85
Fig #
Part #
Image
Part Name
Availability
Price
50
608354-00
DUST BAG [
Info
]
In stock
34 available
$14.21
139
330019-13
SCREW,M4X19 [
Info
]
Ships in 1-2 weeks
$0.85
861
625383-00
KIT BOX [
Info
]
Ships in 1-2 weeks
$43.89
Sandpaper Discs
Compatible with DeWALT DW421 TYPE 1 Random Orbit Sander
25-pack HOOK AND LOOP Sandpaper Discs
Part Number:
DW4309
Manufacturer: DeWALT
Price:
$12.50
Grit: 80
Pack QTY: 25
Size: 5"
Vac Holes: 8
Backing: HOOK AND LOOP
In stock: 5 available
Qty to add:
25-pack HOOK AND LOOP Sandpaper Discs
Part Number:
SR5R122
Manufacturer: Bosch
Price:
$11.00
Grit: 120
Pack QTY: 25
Size: 5"
Vac Holes: 8
Backing: HOOK AND LOOP
In stock: 17 available
Qty to add:
See all compatible Sandpaper Discs...
Shopping Cart
0 items
SANDER PAD (HOOK & LOOP, 5 INCH, 8 VACUUM HOLES)
$13.75
SANDER PAD (PSA-ADHESIVE BACK, 5 INCH, NO VACUUM HOLES)
$12.68
SANDER PAD (PSA-ADHESIVE BACK, 5 INCH, 8 VACUUM HOLES)
$13.29
BRUSH
$3.60
DUST BAG
$14.21
DUST SEAL/BRAKE
$4.70
CORD PROTECTOR
$3.50
BRUSH SPRING
$2.25
SCREW
$0.80
BEARING,BALL
$9.30
BRG. RETAINER
$1.86
Bestsellers
-
SANDER PAD (HOOK & LOOP, 5 INCH, 8 VACUUM HOLES)
-
BRUSH
-
DUST BAG
-
DUST SEAL/BRAKE
-
CORD PROTECTOR
-
BRUSH SPRING
-
SANDER PAD (PSA-ADHESIVE BACK, 5 INCH, NO VACUUM HOLES)
-
SCREW
-
SANDER PAD (PSA-ADHESIVE BACK, 5 INCH, 8 VACUUM HOLES)
-
BEARING,BALL
-
BRG. RETAINER
-
SWITCH (ON-OFF)
-
RETAINER
-
RING,O
-
SCREW,MACHINE
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