Drill Point Angle for given Length of Approach Calculator

✖Diameter of drill bit is essentially the straight distance across the widest part of the cutting edge (lips) of the drill bit. It determines the width of the hole it will create on workpiece.ⓘ Diameter of Drill Bit [D]			+10% -10%
✖Approach Distance is the extra distance the drill travels before it starts cutting into the workpiece. It allows the tool to reach its cutting speed and position itself properly for an accurate hole.ⓘ Approach Distance [A]			+10% -10%

✖Drill Point Angle is the angle between the two cutting edges (lips) of a drill bit at its tip. This angle affects how aggressively the bit cuts and what materials it's suited for.ⓘ Drill Point Angle for given Length of Approach [θ]

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Drill Point Angle for given Length of Approach Solution

STEP 0: Pre-Calculation Summary

Formula Used

Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance)
θ = 2*atan(0.5*D/A)
This formula uses 2 Functions, 3 Variables

Functions Used

tan - The tangent of an angle is a trigonometric ratio of the length of the side opposite an angle to the length of the side adjacent to an angle in a right triangle., tan(Angle)
atan - Inverse tan is used to calculate the angle by applying the tangent ratio of the angle, which is the opposite side divided by the adjacent side of the right triangle., atan(Number)

Variables Used

Drill Point Angle - (Measured in Radian) - Drill Point Angle is the angle between the two cutting edges (lips) of a drill bit at its tip. This angle affects how aggressively the bit cuts and what materials it's suited for.
Diameter of Drill Bit - (Measured in Meter) - Diameter of drill bit is essentially the straight distance across the widest part of the cutting edge (lips) of the drill bit. It determines the width of the hole it will create on workpiece.
Approach Distance - (Measured in Meter) - Approach Distance is the extra distance the drill travels before it starts cutting into the workpiece. It allows the tool to reach its cutting speed and position itself properly for an accurate hole.

STEP 1: Convert Input(s) to Base Unit

Diameter of Drill Bit: 60.3553 Millimeter --> 0.0603553 Meter (Check conversion here)
Approach Distance: 12.5 Millimeter --> 0.0125 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

θ = 2*atan(0.5*D/A) --> 2*atan(0.5*0.0603553/0.0125)

Evaluating ... ...

θ = 2.35619403258361

STEP 3: Convert Result to Output's Unit

2.35619403258361 Radian -->134.999973780976 Degree (Check conversion here)

FINAL ANSWER

134.999973780976 ≈ 135 Degree <-- Drill Point Angle

(Calculation completed in 00.020 seconds)

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Created by Kumar Siddhant

Indian Institute of Information Technology, Design and Manufacturing (IIITDM), Jabalpur

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National Institute Of Technology (NIT), Hamirpur

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< Drilling Operation Calculators

Diameter of Drill Bit given Length of Approach

LaTeX Go Diameter of Drill Bit = 2*Approach Distance/tan(pi/2-Drill Point Angle/2)

Machining Time for Drilling Operation

LaTeX Go Machining Time = Length of Cut/(Feed Rate*Rotational Frequency of Drill-bit)

Drill Point Angle for given Length of Approach

LaTeX Go Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance)

Length of Approach for Drilling Operation

LaTeX Go Approach Distance = 0.5*Diameter of Drill Bit*cot(Drill Point Angle/2)

Drill Point Angle for given Length of Approach Formula

LaTeX Go

Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance)
θ = 2*atan(0.5*D/A)

which are the Common Drill Point Angles?

Drill point angles are given differently for various different machining conditions and different materials used as workpiece. The most used Drill Point Angles are: 1. 90° - for Softer Materials 2. 118° - for Soft to Medium hardness Materials 3. 135° - for Harder Materials.

What is Length of Approach in drilling?

In drilling, the Length of Approach (LOA) refers to the distance the drill bit travels axially (forward) before it starts cutting into the workpiece. It's essentially the "dead travel" of the drill bit before it engages with the material. It's always recommended to consult the drill bit manufacturer's recommendations and refer to machining data handbooks for specific materials and drilling applications to determine the appropriate LOA for your needs.

How to Calculate Drill Point Angle for given Length of Approach?

Drill Point Angle for given Length of Approach calculator uses Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance) to calculate the Drill Point Angle, The Drill Point Angle for given Length of Approach is a method to determine the angle made by the two major cutting edges (lips) of a drill bit at its head, for a given length of approach. It is a crucial aspect of a drill bit that significantly impacts its performance against different materials used as workpiece. Drill Point Angle is denoted by θ symbol.

How to calculate Drill Point Angle for given Length of Approach using this online calculator? To use this online calculator for Drill Point Angle for given Length of Approach, enter Diameter of Drill Bit (D) & Approach Distance (A) and hit the calculate button. Here is how the Drill Point Angle for given Length of Approach calculation can be explained with given input values -> 8114.823 = 2*atan(0.5*0.0603553/0.0125).

FAQ

What is Drill Point Angle for given Length of Approach?

The Drill Point Angle for given Length of Approach is a method to determine the angle made by the two major cutting edges (lips) of a drill bit at its head, for a given length of approach. It is a crucial aspect of a drill bit that significantly impacts its performance against different materials used as workpiece and is represented as θ = 2*atan(0.5*D/A) or Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance). Diameter of drill bit is essentially the straight distance across the widest part of the cutting edge (lips) of the drill bit. It determines the width of the hole it will create on workpiece & Approach Distance is the extra distance the drill travels before it starts cutting into the workpiece. It allows the tool to reach its cutting speed and position itself properly for an accurate hole.

How to calculate Drill Point Angle for given Length of Approach?

The Drill Point Angle for given Length of Approach is a method to determine the angle made by the two major cutting edges (lips) of a drill bit at its head, for a given length of approach. It is a crucial aspect of a drill bit that significantly impacts its performance against different materials used as workpiece is calculated using Drill Point Angle = 2*atan(0.5*Diameter of Drill Bit/Approach Distance). To calculate Drill Point Angle for given Length of Approach, you need Diameter of Drill Bit (D) & Approach Distance (A). With our tool, you need to enter the respective value for Diameter of Drill Bit & Approach Distance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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