Ryobi D47CK Review

Ryobi D47CK

Ryobi D47CK Ryobi
D47CK

3/8" VSR Keyless
Power Drill
3/8" Keyless Chuck
Price Level: $
Power

4.5

Amps
Speed

1200

Max RPM
Weight

3.8

Pounds
Capacity

1

In. Wood Bit
Warranty

3

Year

Ratings Guide   Best Better Good FairPoor



KEY STRENGTHS & WEAKNESSES
POWER The D47CK is 38% less powerful than average and ranks in the bottom 20% of power drills for amperage. The motor carries 2.7 amps less electrical current load than the average 7.2 amp corded drill.  
SPEED This Ryobi drill is 11% faster than average and ranks in the top 40% of power drills for maximum RPM. It can run at speeds that achieve 110 RPM more than the average 1090 RPM corded drill.
WEIGHT It is 18% lighter than average and ranks in the top 20% of power drills for lower weight. It weighs 0.8 lbs less than the average 4.6 lb corded drill and should decrease operator fatigue.
CAPACITY This power drill ranks about average for wood bit capacity with a hole diameter that is considered standard for corded drills. The average wood bit capacity for corded drills is about 1" to 1-1/4".  
WARRANTY Ryobi's 3-year limited tool warranty is a little longer than average for the drill industry where the standard is about 2-3 years. Longer warranties can often indicate improved durability with fewer repairs.


Ryobi D47CK Cordless Drill


PERFORMANCE RATINGS
Power 4.5 amps - The D47CK is 38% less powerful than average and ranks in the bottom 20% of power drills for amperage. The motor carries 2.7 amps less electrical current load than the average 7.2 amp corded drill.  
Capacity
Wood
1" Hole - This power drill ranks about average for wood bit capacity with a hole diameter that is considered standard for corded drills. The average wood bit capacity for corded drills is about 1" to 1-1/4".  
Speed 0-1200 RPM - This Ryobi drill is 11% faster than average and ranks in the top 40% of power drills for maximum RPM. It can run at speeds that achieve 110 RPM more than the average 1090 RPM corded drill.
Capacity
Steel
0.375" Hole - This power drill ranks about average for bit capacity in steel with a hole diameter that is considered standard for corded drills. The average bit capacity in steel for corded drills is 3/8".  
Power
Ratio
1.2 P/W - The Ryobi D47CK power-to-weight ratio is 25% lower than average and ranks in the bottom 20% of corded drills. The P/W ratio is 0.4 lower than the 1.6 average ratio for power drills.  
Gear
Reduction
Single - Gear systems without double or triple reduction generally provide less torque for a given amperage. They operate less efficiently at lower speeds and the gears receive more stress and wear.  


DURABILITY RATINGS
Gear
Housing
Non-Metal - The Ryobi D47CK gear housing is made from non-metal materials that may not protect the drill or transmission from repeated drops onto hard surfaces. Metal housings are more durable but add weight.  
Gears Non-Metal Parts - Some of the transmission components are made of non-metal materials that are more susceptible to failure. Gears spin at high RPMs and experience large rotational forces.  
Warranty 3-Year - Ryobi's 3-year limited tool warranty is a little longer than average for the drill industry where the standard is about 2-3 years. Longer warranties can often indicate improved durability with fewer repairs.


CONVENIENCE RATINGS
Weight 3.8 lbs - It is 18% lighter than average and ranks in the top 20% of power drills for lower weight. It weighs 0.8 lbs less than the average 4.6 lb corded drill and should decrease operator fatigue.
Length Cordless drill length is a personal preference, but shorter is generally better to help you in close quarters such as under a sink, or drilling in-between studs. Torque is harder to handle if the drill is too short though.  
Spindle
Lock
No Spindle Lock - The double-sleeve chuck requires two hands to unlock and change the bit. It is significantly more cumbersome than spindle-lock drills. Most keyless chucks now have one-hand bit change.  
Belt
Hook
No Belt Hook - There is no provision to hang the drill on your belt and free-up both hands to perform other tasks. You may be able to purchase a separate belt clip that can be attached to the drill.  
Side
Handle
No Side Handle - Side handles are a great safety feature and should be considered if you plan to drive at higher torque levels. They can help prevent injury by providing increased stability and control.  
VSR VSR - Most cordless drills are equipped with variable speed capability that can be controlled with simple trigger pressure. Reverse is usually performed with the push of a side-to-side button.


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