5ENGLISHExplanation of general viewSPECIFICATIONS• Due to our continuing program of research and development, the specifications herein are subject to change withoutnotice.• Note: Specifications may differ from country to country.Intended useThe tool is intended for impact drilling in brick, concreteand stone as well as for drilling without impact in wood,metal, ceramic and plastic.SPECIFIC SAFETY RULESDO NOT let comfort or familiarity with product (gainedfrom repeated use) replace strict adherence to ham-mer drill safety rules. If you use this power toolunsafely or incorrectly, you can suffer serious per-sonal injury.1. Wear ear protectors with impact drills. Exposure tonoise can cause hearing loss.2. Use auxiliary handles supplied with the tool. Lossof control can cause personal injury.3. Hold power tools by insulated gripping surfaceswhen performing an operation where the cuttingtool may contact hidden wiring or its own cord.Contact with a “live” wire will make exposed metalparts of the tool “live” and shock the operator.4. Always be sure you have a firm footing. Be sureno one is below when using the tool in high loca-tions.5. Hold the tool firmly with both hands.6. Keep hands away from rotating parts.1. Red part2. Button3. Battery cartridge4. Switch trigger5. Lamp6. Reversing switch lever7. Speed change lever8. Action mode changing ring9. Adjusting ring10. Arrow11. Graduations12. Steel band13. Grip base14. Protrusion15. Side grip16. Groove17. Sleeve18. Bit holder19. Bit20. Depth rod21. Clamp screw22. Screw23. Hook24. Blow-out bulb25. Limit mark26. Rear cover27. Screws28. Arm29. Spring30. Recessed part31. Carbon brush cap32. Hole33. Carbon brush capModel BHP441 BHP451CapacitiesConcrete 14 mm 16 mmSteel 13 mm 13 mmWood 50 mm 65 mmWood screw 6 mm x 75 mm 10 mm x 89 mmMachine screw 6 mmNo load speed (min-1 )High (3) 0 - 1,700 0 - 1,700Medium (2) 0 - 600 0 - 600Low (1) 0 - 300 0 - 300Blows per minute (min -1)High (3) 0 - 25,500 0 - 25,500Medium (2) 0 - 9,000 0 - 9,000Low (1) 0 - 4,500 0 - 4,500Overall length 250 mm 250 mmNet weight 2.1 kg 2.2 kgRated voltage D.C. 14.4 V D.C. 18 V