2ENGLISH (Original instructions)SPECIFICATIONSModel BHP440 BHP450Concrete 13 mm (1/2")Steel 13 mm (1/2")Wood 27 mm (1-1/16")Wood screw Ø 6.8 mm x 50 mm (1/4" x 2")CapacitiesMachine screw M6 (1/4")High (2) 0 - 1,400/min.No load speed (RPM) Low (1) 0 - 400/min.High (2) 0 - 21,000/min.Blows per minute Low (1) 0 - 6,000/min.Overall length 204 mm (8")Net weight 1.7 kg (3.7 lbs) 1.8 kg (4.0 lbs)Rated voltage D.C. 14.4 V D.C. 18 VStandard battery cartridge BL1430 BL1830• Due to our continuing programme of research and development, the specifications herein are subject to change without notice.• Specifications and battery cartridge may differ from country to country.• Weight, with battery cartridge, according to EPTA-Procedure 01/2003GEA002-3GENERAL SAFETY RULESWARNING! Read all instructions. Failure to follow allinstructions listed below may result in electric shock, fireand/or serious injury. The term "power tool" in all of thewarnings listed below refers to your mains-operated(corded) power tool or battery-operated (cordless) powertool.SAVE THESE INSTRUCTIONS.Work area safety1. Keep work area clean and well lit. Cluttered anddark areas invite accidents.2. Do not operate power tools in explosiveatmospheres, such as in the presence offlammable liquids, gases or dust. Power toolscreate sparks which may ignite the dust or fumes.3. Keep children and bystanders away whileoperating a power tool. Distractions can causeyou to lose control.Electrical Safety4. Power tool plugs must match the outlet. Nevermodify the plug in any way. Do not use anyadapter plugs with earthed (grounded) powertools. Unmodified plugs and matching outlets willreduce risk of electric shock.5. Avoid body contact with earthed or groundedsurfaces such as pipes, radiators, ranges andrefrigerators. There is an increased risk ofelectric shock if your body is earthed or grounded.6. Do not expose power tools to rain or wetconditions. Water entering a power tool willincrease the risk of electric shock.7. Do not abuse the cord. Never use the cord forcarrying, pulling or unplugging the power tool.Keep cord away from heat, oil, sharp edges ormoving parts. Damaged or entangled cordsincrease the risk of electric shock.8. When operating a power tool outdoors, use anextension cord suitable for outdoor use. Use ofa cord suitable for outdoor use reduces the risk ofelectric shock.Personal Safety9. Stay alert, watch what you are doing and usecommon sense when operating a power tool.Do not use a power tool while you are tired orunder the influence of drugs, alcohol ormedication. A moment of inattention whileoperating power tools may result in seriouspersonal injury.10. Use safety equipment. Always wear eyeprotection. Safety equipment such as dust mask,non-skid safety shoes, hard hat, or hearingprotection used for appropriate conditions willreduce personal injuries.11. Avoid accidental starting. Ensure the switch isin the off-position before plugging in. Carryingpower tools with your finger on the switch orplugging in power tools that have the switch oninvites accidents.12. Remove any adjusting key or wrench beforeturning the power tool on. A wrench or a key left