Description
Radnor 64004915 19 64'' X 19 64'' Shank High Speed Steel, Black Oxide, 135° Split Point, Self Centering, Jobber Length Drill Bit (12 PER CASE) Monitors & Calibration Equipment Noise reduction rating (NRR) 29 Noise reduction rating (NRR) 29 dB CSA Class AL The quick lock attachment on the breathing tube will not disconnect accidentally yet is easy to remove for easy cleaning and maintenance