ToolBox Drill Depth Default?

[MJuric]

Does anyone know where the formula or data is kept for the default drill depth on blind tapped holes in the toolbox? Tap Depth is simply 2X diameter but I have no idea where the drill depth comes from.

[JSculley]

From the Knowledge Base:

===================================
Solution Id S-060656
Product SolidWorks 2011
Created 10/9/2012
Technically Reviewed Date 3/12/2021
Area Part
Sub-Area Hole
Question How are straight tap blind hole depth values calculated?

Answer: The formula is as follows:

Blind Hole Depth = Thread Depth + 'n' * Thread Advance

Where,
Thread depth = 2 * Diameter
n = is not fixed value and has different values based on parameters like the standards and the type of standards. For 'Bottoming tapped hole', n = 3. For 'Tapped hole', n = 5

For example, for ANSI Metric Tapped Hole M10x1.25
Thread Depth = 2*10mm = 20mm
'n' = 5
Thread Advance = 1.25mm
Blind Hole Depth = 20mm + 5 * 1.25mm = 26.25mm

For ANSI Inch Tapped Hole 1/4-20
Thread Depth = 2*0.25mm = 0.5mm
'n' = 5
Thread Advance = 20 TPI which means the pitch is 1/20 inch = 0.05in.
Blind Hole Depth = 0.5in + 5 * (0.05in) = 0.75 in
=============================================

[MJuric]

From the Knowledge Base:

===================================
Solution Id S-060656
Product SolidWorks 2011
Created 10/9/2012
Technically Reviewed Date 3/12/2021
Area Part
Sub-Area Hole
Question How are straight tap blind hole depth values calculated?

Answer: The formula is as follows:

Blind Hole Depth = Thread Depth + 'n' * Thread Advance

Where,
Thread depth = 2 * Diameter
n = is not fixed value and has different values based on parameters like the standards and the type of standards. For 'Bottoming tapped hole', n = 3. For 'Tapped hole', n = 5

For example, for ANSI Metric Tapped Hole M10x1.25
Thread Depth = 2*10mm = 20mm
'n' = 5
Thread Advance = 1.25mm
Blind Hole Depth = 20mm + 5 * 1.25mm = 26.25mm

For ANSI Inch Tapped Hole 1/4-20
Thread Depth = 2*0.25mm = 0.5mm
'n' = 5
Thread Advance = 20 TPI which means the pitch is 1/20 inch = 0.05in.
Blind Hole Depth = 0.5in + 5 * (0.05in) = 0.75 in
=============================================

So I'm assuming by that that this is a hard coded number. If that is the case that's fine and it actually makes my job easier. I'm working on identifying features in CAMWorks so for the depth I can just use the above formula.