Specifications
Dimensions
- Helix Angle45 °
- Overall Length2-1/2 in
- Thread Size1/4-20 in
Details
- ChamferBottoming
- Class of Fit3B
- Finish CoatingOxide
- Flute DirectionRight Hand
- Flute TypeFast Spiral
- MaterialHigh Speed Steel
- Number Of Flutes3
- Thread DirectionRight Hand
- Thread Limit/FitH3
- Thread StandardUNC
- Through CoolantNonThrough Coolant
Overview
Mfr description
09235524 1/4-20 UNC 3 FLUTE 3B BOTTOMING
- Bottoming chamfers are used for threading blind holes. They have 1 to 2 threads.
- Fast Spiral Flutes with 40-53 degree angles are suitable for ductile materials like aluminum and copper; medium to high carbon steels and free machining stainless steels.
- High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials.
- Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.