Half Round File, 8 in, Bastard Cut, Curved Flat Single Cut ORS NASCO VITON equipped for maximum chemical VITON equipped for maximum chemical resistance Ergo handle Patented SureSpray anti clog filter helps prevent clogging which is an exclusive to Chapin sprayers Poly adjustable cone pattern nozzle sprays cone to stream for total spray control Uses #3 1802 nozzle Heavy duty steel body with double slide support for rigidity Durable spring loaded mechanism holds terminal lug in place Easy to read scale on both sides of drive punch Wide base for stability Used on concave flat on opposite Flat sides of all half round files are double cut Backs of all 4 in and 6 in files are single cut Backs of all half round second cut files are longer than 6 in are double cut