12V Drill Driver Evaluation And Acceptance Criteria

I Performance

I.A.1 No Load RPM, 0-575+/-10%

I.A.2 Power Input,



Motor Enclosure Outside:       50°C Max.

Motor Bearings:      120°C Max. 

Other bearings:      93°C Max.

Motor Case:   80°C Max.

Battery Pack: 70°C Max. Discharge40'C Max. Charge
Surfaces normally contacted by a user*    Per EN60745

I.B Practical Performance

Each sample will be tested to verify the minimum numbers listed below per charge using the battery pack (1.5Ah or3 Ah)

Note: White pine to be air or kiln dried 1 1% moisture content.
Rest 5min. each 50pcs wood holes.

I.C.1.Switch/switch assembly-
               Pre-travel - For information only
               Force to actuate switch - For information only                                                     
Force to hold switch in full on - For information only                                         Force to override switch lock-off - Must withstand 50 lb. force                       applied to actuator withoutOverriding the lock-offmechanism.

I.C.2. Switch Endurance - Each sample must achieve a minimum of 50,000 cycles without failure.

II. Product Life
II.A. Product Fixture Life -Each sample must achieve a minimum life of 50 hours. (Use a test voltage of 10.8Vdc.)

II.B. Use Test - Each of the 5 samples must be tested to verify the minimum number ofholes/screws listedbelow, Each sample must complete a minimum of 60 total application steps 12 complete test cycles, wheretest cycle consists of the 5 application steps A-E as below).

Conduct cycles 1 -3 using 1.5Ah pcak.                                                   Conduct cycles 4-9 using 3.0.Ah pack.                                                   Conduct cycles 10-12 using 1.5 Ah pack.

Chucks should be tightened by hand at the beginning of each power pack. Chucks should not loosen morethan once per power pack during testing. A “loosening" occurs when the tool can not continue drilling unlessthe chuck is re-tightened by hand. Slips of the bit during testing should not be considered a failure as long asdrilling can continue without re-tightening of the chuck, No malfinction of tool is allowed throughouttesting. No malfunction of battery including melting, heat deformation, and capacity to take a charge anddischarge is allowed throughout testing.

II.C.Use Test Log- Provide copy oftest log to project engineer for reference.

I.D, Jam Test -Each sample must withstand a minimum of 50 jams without malfunctioningSlips during jam testing are not considered a failure.Jam testing with an inserted washer to prevent clutch slipping must withstand a minimum of 50 jams 

Ill. Product Safety
Ill.A. Each sample must be free from any problems that could result in a safety risk to the operator.
Ill.B. Perform drop (impact resistance) testing on (3) samples per appropriate regulatory standard.

IV.Special Tests

IV.A. Lock Rotor Test-N/A
IV,B. Bench Drop - Each sample must complete bench drop without loss of intended function.
No excessive deformation to the product will be allowed as a result ofthe bench drop.
IV.C. Output Torque - Each sample must achieve a minimum output torque of 100 in.lbs. (1 1.3Nm)with 1.5Ah pack.
IV.D. Chuck/Collet Run-Out - Each sample must be equal to or less than 0.4mm TIR when tested 1 .0 inchfrom the chuck's face. Both 3/8” and 3/16” test pins should be used.
IV.E. Drop Test (Tool and Battery) -- Electrical safety, functionality, and structural integrity must bemaintained after each drop . Seam gaps in excess of0.063-inch (1 .6mm) and excessive deformation are not allowed. Storedtools that come loose during drop shall not be considered as a drop test failure.

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