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How long can I work with Bosch Power Tools?

The question is not just one of time, but also one of productivity. Choosing a power tool on possible working time alone (as defined by the vibration level) is not advisable without also considering the amount of work that can be carried out in that time. 
Quite often a power tool that has a comparatively high vibration level is capable of completing an application very quickly. E.g. a rotary hammer may take only 5 seconds to drill a hole for a fixing. This means that in the apparently short allowable daily working time imposed by the directive, a great deal of work (maybe several hundred holes) can be carried out without exceeding the ELV. Suitability of the tool and the efficiency of that tool for the job, are also important factors that will affect the usage time, productivity and therefore the operator’s exposure to HAV.

  

The following tables show the possible daily productivity for Bosch Hammers and Angle Grinders in any working day. Clearly showing that a very large number of drilling, grinding and cutting applications can be performed before the Exposure Limit Value (ELV) is reached.

 

 

Maximum number of applications by an operator in any working day with Bosch Angle Grinders (EAV + ELV)

 

Small angle grinders with Vibration Control Maximum number of applications measured with Bosch accessories
EAV ELV
Removing rust on metal plates, 40 cm x 20 cm 463 1,850 Rubber Backing Pad, 2 608 601 033
Fiebre Sanding Sheet K120, 2 608 606 736
Grinding welded seams, 10 cm x 1 cm 533 2,130 Flap Disc, 2 608 607 923
Cutting steel reinforcement, Ø 10 mm 1.050 4,200 Cutting Disc 2.5 mm thick, 2 608 600 394
Cutting concrete, 2 cm x 25 cm 385 1,540 Cutting Disc 1.6 mm thick, 2 608 600 219
Cutting metal plate, 2 mm x 35 cm 900 3,600 Vibration reduced UPP Diamond Cutting Disc, 2 608 602 163
Cutting brick, 3 cm x 24 cm 900 3,600 Vibration reduced UPP Diamond Cutting Disc, 2 608 602 163

 

 

Large angle grinders with Vibration Control Maximum number of applications measured with Bosch accessories
EAV ELV
Removing rust on metal plates, 40 cm x 20 cm 418 1,670 Rubber Backing Pad, 2 608 601 007
Fiebre Sanding Sheet K120, 2 608 606 751
Grinding welded seams, 10 cm x 1 cm 178 710 Rough Ghrinding Disc 6 mm thick, 2 608 600 228
Cutting steel reinforcement, Ø 10 mm 935 3,740 Cutting Disc 3 mm thick, 2 608 600 324
Cutting concrete, 2 cm x 25 cm > 5,000 Cutting Disc 3 mm thick, 2 608 600 324
Cutting metal plate, 2 mm x 35 cm > 5,000 Vibration reduced UPP Diamond Cutting Disc, 2 608 602 166
Cutting brick, 3 cm x 24 cm > 5,000 Vibration reduced UPP Diamond Cutting Disc, 2 608 602 166