Precise 4 Flute H.S.S. Standard Bottoming Hand Tap, 5/16″-18 Thread Size, Thread Limit H3

• H.S.S. – High Speed Steel
• Hardness: 58 to 60 RC
• Finish Coating: Bright
• Spiral point is designed to push the chips ahead of the cutting action, helping to reduce loading in the flutes
• Used as the final tap in a blind hole where the hole must be threaded almost to bottom.
• Chamfer of 1-2 threads.
• Cutting & Thread Direction: Right Hand
• Flute Shape: Straight Flute
• Chamfer: Bottoming
• Size Type: ANSI
• Series: F3
• Workpiece Material Range: Steel, Non-Ferrous, Cast Iron, Plastics

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