Manufacturing, Manufacturing Plant Hillsboro, OR – Sprinkler activates to help limit damage in fire at tool manufacturer May 16, 2015 viking210 A fire at a tool company in Hillsboro forced 120 employees to evacuate on May 15. After an hour of waiting outside, employees re-entered the building. No one was injured, but the fire caused some minor damage to the building. Investigators said the fire began in a dust filtration unit on the production floor of Davis Tool at 3740 Northwest Aloclek Place in Hillsboro. Fire damage extended up the exhaust duct of the dust unit, spreading smoke throughout the warehouse and activating a single roof fire sprinkler. Davis Tool produces precision-machined parts, sheet metal parts, and assemblies. Fire investigators believe that a spark from grinding operations near the dust filtration unit caused combustible particles to ignite. According to Hillsboro Fire and Rescue, the building had already been evacuated when they arrived. Firefighters reported smoke coming from the rear doors of the production area. A total of 24 Hillsboro Fire Department and Tualatin Valley Fire & Rescue firefighters responded, extinguishing the flames within 11 minutes.