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Makita BDF451 - 18V LXT Driver/Drill
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18V LXT Lithium-ion 1/2" Driver-Drill Kit Model: BDF451
 
PDF Parts Breakdown PDF Owners Manual
       
  Features    
 
  • LXT Lithium-Ion battery and optimum charging system produces 280% total lifetime work with 2x more cycles
  • Makita built, 4-pole maximum torque motor delivers 560 in. lbs. of efficient torque in a compact size
  • Compact design at only 9-3/8" length and weighs only 4.6 lbs. for less operator fatigue
  • Ergonomic shape fits like a glove with even pressure and easy control
  • LXT Lithium-Ion provides longer run time, 5x lower self-discharge (for use any time) and 16 firm holding contact terminals (for constant high power)
  • 45-minute Optimum Charger and battery communicates throughout the charging process using the built-in chip in the battery and built-in CPU chip in the charger. The Charger also uses "Active 3 Control" for current control, thermal control & voltage control
  • 45-minute Optimum Charger has a built-in fan to cool the battery to produce more lifetime work
  • Two built-in L.E.D. lights for more illuminated work
  • 3-Speed design produces 25% faster working speed with more efficiency in a wider range of applications
  • Two-piece armature and field along with externally accessible brushes for serviceability and longer motor life
  • 3-year warranty on tool and 1-year warranty on battery
       
       
 

 
 
 
Chuck (metal)    1/2" 
Capacity     
  Steel  1/2" 
  Wood  2-9/16" 
No Load RPM     
  Low  0-300 
  Mid  0-600 
  High  0-1,700 
Torque (in.-lbs.)    560 
Watt Hours    54.0 
Battery (Ah)    3.0  
Length    9-3/8" 
Net Weight (lbs. w/battery)    4.6 lbs. 
Shipping Weight (lbs.)    14.55 
UPC Code    088381069175

 

 
 

I have used Craftsman, Ryobi, DeWALT and Makita from 7-18 volts. Makita has again produced a tough, handy design.  Compared to my old 18 volt DeWALT XRP hammerdrill/driver (which is not balanced and won't stand on its battery) this drill does not pump my forearm like Popeye's after about half an hour.  I wish I could say it outperforms the DeWALT in every way, but I expected more torque. Spoiled, I guess.  But, the lithium-ion charges last about 1.5 times longer than the 18v nicad in my experience.(XRP was useful to 3/4 hour of #10 deck fasteners) I dig the lithium charging: you can pull it off before the "45 minute" full charge, without lobotomizing your battery. Also cool: The packs HOLD charge phenomenally well; so I can rely on ready stand-by. Ace in the hole.
Bottom line: Light and handy. Short of gasoline fired, you wont find better charge storage, but I find the BDF451 kind of spendy for middling torque.

A couple of other negatives:
1. The light is nice, but it really doesn't point right on the spot you're working on, so it's not as good as it could be.

2. The torque limiting is limited at the low end. In other words, even at the lowest setting, you can still over-drive small screws pretty easily.

3. The switch for changing the speeds gets stuck.  You need to spin the motor a little and try a few times sometimes to get it to shift.  Not a big deal, but a little annoying.

4. Unlike the drill, the lithium packs are warranted for only 1 year. Standard issue.
 
     

 
 
194205-3   2 LXT Lithium-Ion 3.0Ah batteries (194205-3)
Anytime Charge: Lithium-Ion batteries have no memory effect and can be charged at any time. Charging Technology: Controls current, voltage & temperture to maximize battery life.
 
DC18SC   45-minute optimum charger (DC18SC)
Forced Air Cooling Fan: Cools the battery by forcing cool air through the battery's built-in air vents. Fast Charging: Quickly charges an 18V 3.0 Amp hour Li-Ion battery in only 30 minutes.
821007-X  

Carrying case
(824754-3)

 
 
  • Screwdriver bits (784637-8)

 

   
 

 
 

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