Overview
Mfr description
74389040 74389040 1-8 H4 3PC CHRM TPR/BT
- Bottoming chamfers have 1 to 2 threads
- Plug chamfers have 3 to 5 threads
- Taper chamfers have 7 to 10 threads and are typically used as a starter tap
- They all can be used for threading blind holes.Chrome is a corrosion resistant coating applied to a tool in a thin or heavy layer
- It is commonly used on steel, aluminum, brass, copper or other non-chromium materials.High Speed Steel (HSS) provides good wear-resistance and can be used in general purpose applications for both ferrous and non-ferrous materials.
Specifications
- ChamferBottoming, Plug, Taper
- MaterialHigh Speed Steel
- Finish CoatingChrome
- Number Of Flutes4
- Thread Limit/FitH4
- Thread StandardUNC
- Thread DirectionRight Hand
- Thread Length2-1/2 in
- Overall Length5-1/8 in
- Number Of Pieces3
- Thread Size1-8
- Class of Fit2B/3B
Compliance & Safety Data
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