 "Ingersoll Rand Air Needle Scaler 8 CFM, 4600 RPM" Quickly removes rust, dirt, old paint or weld slag19 1/8 in. needles operate at 4600 RPM free speed1in. bore diameter1 1/8in. stroke8 average C ... Discount Price: $ 139.99 |  "Northern Industrial Tools Air Needle Scaler 4 CFM, 90 PSI" You get 19 needle attachments! Short barrel air hammer Develops 4500 blows per minute 4 CFM consumption; 90 PSI 1/4in. air inlet Dimensions of ... Discount Price: $ 39.99 |  "Wel-Bilt Air Needle Scaler 8 CFM, 90 PSI" Produces 4500 BPM Consumes 8 CFM of air; 90 PSI 1/4in. air inlet; 1in. x 1.7in. piston 19 needles, .12in. dia. x 7in.L"" ... Discount Price: $ 69.99 |