Sioux Needle Scaler, Square Shank, Series: SC4, 1 in Bore, 4600 bpm Blows per Minute, 1.1 in Stroke Length, 12 cfm Air Flow, 90 psi Air, 1/4 in NPT Air Inlet, Lever Throttle, 3/8 in Minimum Hose, In-Line Handle, 15.3 in L Dimensions

ITEM FEATURES:

• SC4 series scalers accept notched, square shank chisels and accessories
• Each can be quickly converted between chisel and needle styles
• Quick-release retainer
• Adjustable needle length