Flute Type: Straight. Hand of Cut: Left. Material: HSS. Number of Flutes: 4, Shank Configuration: Straight with Square. Surface Condition: Bright, Tap Blank Construction: USCTI Table 302A, Tap Chamfer: Plug, Tap Construction: Left-Hand, Tap Ground Threads: Yes, Tap Interrupted Thread: No, Tap Limit: H3, Tap Spiral Point: No, Tap Style: Straight Flute Hand Tap, Tap Truncated Threads: No, Tap Type: Hand Tap. Tool Size: 3/8 - 16 UNC. Diameter: 0.3750-Inch. Overall Length: 2.9400-Inch, Overall Length (Metric): 74.68mm, Shank Size: 0.3810-Inch, Shank Size (Metric): 9.68mm, Shank Square Length: 0.4375-Inch, Shank Square Length (Metric): 11.11mm, Shank Square Size: 0.2860-Inch, Shank Square Size (Metric): 7.26mm, Tap Neck Length: 0.5100-Inch. Depth of Cut: 2xD. Material Application:- K: Cast Iron, M: Stainless Steel, N: Non-ferrous Metal, P: Steel. Operation Type: Blind Hole.