[Compatibility]: Part number is 194160-9. Fit for the following tool models:HK1820 Corded Sds+ Power Scraper 110v & 240v HK1820L Corded Sds+ Power Scraper 110v & 240v HM0870C Sds Max Demolition Hammer HM0871C Sds-max Avt Demolition Hammer HR3210C 32mm Sds Plus Rotary Hammer HR3210FCT 32mm Sds Plus Rotary Hammer HR3540C Sds Max Rotary HammerHR3541FC 35mm Sds Max Rotary Hammer HR4001C 40mm Sds Max Rotary Hammer HR4011C Demolition Rotary Hammer [Application]: Compatible with Makita HK1820 HK1820L HM0870C HM0871C. [Auto Stop]: With automatic stop function, once the carbon brush wear indicates that the carbon brush needs to be replaced, the machine will stop working. [Function]: Worn brushes are often the cause of a poorly running motor. Replacing brushes can fix an intermittent motor and can restore a motor's electric braking. [Dimension]: The size of the carbon brush is 6.5x11x25mm/2.56x4.33x9.84inch., Weight: 0.0440924524 Pounds, Manufacturer: Be In Your Mind