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 John L.
Date Added: Sunday 17 August, 2008
I have 3 of the dewalt DW421 sanders and they each have the same problem that when holding the sander off the surface they run great, but as you touch the surface it stops turning. I have replaced the brushes and still doesn't help. Does anyone had this same problem or know the fix. Thank You