Hertel 1/4-20 UNC Bottoming Thread Forming Tap, 4 Flute, High Speed Steel, TiN Finish (SQ4693192WT08)
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Bottoming chamfers are used for threading blind holes to the bottom. They have 1 to 2 threads.
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.
High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
Thread Size (Inch): 1/4-20
Thread Limit: H4
No. of Flutes: 4
Material: High Speed Steel
Overall Length (Inch): 2-1/2
Thread Standard: UNC