Union Butterfield® 1544 Low Rake Straight Flute Pipe Tap, Imperial, 3/8-18, NPT Thread, 4 Flutes, Normal, Taper

• Low rake heavy duty for cast iron and heat treated alloy steels
• Nitride surface treatment reduces wear and chip welding
• Manufactured with a cutting geometry specifically for gray cast irons producing broken chips
• The design makes these taps also appropriate for non-metallics, cast brass and other brass materials producing broken, powdery chips
• 1/2 in square length
• 1.5XD depth of cut

Union Butterfield® Pipe Tap| Low Rake Straight Flute| Series: 1544| Measurement System Imperial| 3/8-18| NPT Thread Standard| Taper Chamfer| 1-1/16 in Thread Length| 2-9/16 in Overall Length| 4 Flutes| Right Hand Cutting| Class of Fit: Normal| 0.7 in Shank Dia| 0.531 in Square Size| HSS| Nitride