Product details : CUTLINE 885557 HSS UNC SPIRAL FLUTE TAP 1/4 X 20 INCH
• ISO 529
• Tap tolerance: Class 2 for 2B fit
• Chamfer thread: 2-3
• Cutting rake: 10°
• Flute geometry: Right spiral flute 35°
• Surface treatment: Bright
• Application: General purpose tapping for blind holes