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ALLIED MACHINE & ENGINEERING | RECOMMENDED CUTTING DATA

Coolant Recommendations | Imperial (inch) High Performance Spade Inserts

Data by Diameter

ISO Material

Data Metrics

1" - 1-1/4" 100 - 250 105 - 150 6.3 - 7.6 85 - 275 80 - 115 5.5 - 6.6 125 - 325 70 - 100 5.2 - 6.2 125 - 375 60 - 85 4.8 - 5.7 225 - 400 25 - 30 3.1 - 3.4 100 - 350 50 - 70 4.4 - 5.2 150 - 250 25 - 30 3.1 - 3.4 140 - 310 35 - 40 3.6 - 3.9 135 - 275 50 - 65 4.4 - 5.0 120 - 320 40 - 50 3.9 - 4.4 30 - 180 150 - 220 7.6 - 9.1

1-1/4" - 2" 100 - 250 55 - 75 15 - 18 85 - 275 45 - 55 14 - 15 125 - 325

2" - 3"

3" - 5"

Free-Machining Steel 1118, 1215, 12L14, etc.

Hardness (BHN)

100 - 250 45 - 60 31 - 36 85 - 275 35 - 45 28 - 31 125 - 325

100 - 250 35 - 45 47 - 53 85 - 275 30 - 35 43 - 46 125 - 325

Coolant Pressure (PSI)

Coolant Volumetric Flow Rate (GPM)

Low-Carbon Steel

Hardness (BHN)

Coolant Pressure (PSI)

Coolant Volumetric Flow Rate (GPM)

Medium-Carbon Steel

Hardness (BHN)

Coolant Pressure (PSI)

40 - 50 13 - 15

35 - 40 28 - 30

30 - 35 43 - 46

Coolant Volumetric Flow Rate (GPM)

Alloy Steel

Hardness (BHN)

125 - 375

125 - 375

125 - 375

P

Coolant Pressure (PSI)

30 - 40 11 - 13

30 - 35 26 - 28

25 - 30 39 - 43

Coolant Volumetric Flow Rate (GPM)

High-Strength Alloy

Hardness (BHN)

225 - 400

225 - 400

225 - 400

4340, 4330V, 300M, etc.

Coolant Pressure (PSI)

20 - 25

20 - 25 21 - 23

20 - 25 35 - 39

Coolant Volumetric Flow Rate (GPM)

9 - 10

Structural Steel

Hardness (BHN)

100 - 350

100 - 350

100 - 350

A36, A285, A516, etc.

Coolant Pressure (PSI)

30 - 35 11 - 12

25 - 30 23 - 26

25 - 30 39 - 43

Coolant Volumetric Flow Rate (GPM)

Tool-Steel

Hardness (BHN)

150 - 250

150 - 250

150 - 250

H-13, H-21, A-4, 0-2, S-3, etc.

Coolant Pressure (PSI)

20 - 25

20 - 25 21 - 23

20 - 25 35 - 43

Coolant Volumetric Flow Rate (GPM)

9 - 10

High-Temp Alloy

Hardness (BHN)

140 - 310

140 - 310

140 - 310

S

Hastelloy B, Inconel 600, etc.

Coolant Pressure (PSI)

25 - 30 10 - 11

25 - 30 23 - 26

- -

Coolant Volumetric Flow Rate (GPM)

Stainless Steel

Hardness (BHN)

135 - 275

135 - 275

135 - 275

M

303, 416, 420, 17-4 PH, etc.

Coolant Pressure (PSI)

30 - 35 11 - 12

25 - 30 23 - 26

25 - 30 39 - 43

Coolant Volumetric Flow Rate (GPM)

Cast Iron

Hardness (BHN)

120 - 320 25 - 30 10 - 11 30 - 180 80 - 115 19 - 22

120 - 320 25 - 30 23 - 26 30 - 180 60 - 80 36 - 42

120 - 320 20 - 25 35 - 43 30 - 180 55 - 70 59 - 66

K

Coolant Pressure (PSI)

Coolant Volumetric Flow Rate (GPM)

Aluminum

Hardness (BHN)

N

Coolant Pressure (PSI)

Coolant Volumetric Flow Rate (GPM)

Deep Hole Drilling Speed and Feed Adjustment Holder Length

Recommended Speed and Feed Example If the recommended pressure and flow is 150 PSI and 6.3 GPM for a standard length holder, then the adjusted pressure and flow using an XL holder in the same applicaƟon would be 300 PSI and 12.6 GPM. 150 • 2 = 300 PSI 6.3 • 2 = 12.6 GPM

Long

XL

Pressure and Flow

1.3

2

Tool failure can cause serious injury. To prevent: - When using holders without support bushing, use a short length holder to establish an iniƟal hole that is a minimum of 2 diameters deep. - Do not rotate tool holders more than 50 RPM unless it is engaged with the workpiece or fixture. Refer to page 77 for Deep Hole Drilling Guidelines. Visit www.alliedmachine.com/DeepHoleGuidelines for the most up-to-date informaƟon and procedures. Factory technical assistance is available for your specific applicaƟons through our ApplicaƟon Engineering Team. WARNING

IMPORTANT: The coolant pressure and flow rate recommendaƟon below represents a good approximaƟon to obtain opƟmum tool life and chip evacuaƟon at the recommended speeds and feeds. If lower coolant capabiliƟes exist in a drilling applicaƟon, the HP/Universal drilling system will sƟll funcƟon at reduced penetraƟon rates. Contact our ApplicaƟon Engineering department for more specific recommendaƟons of coolant requirements and/or speeds and feeds.

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