Tool Group Material Guide

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Identify material being cut.
Select from tool group catagory description or
the tool group letter from "Pictorial Index" or
following table's header.
Choose surface feet per minute from the speed
range provided in the following table. Start at
middle of range shown for average material
hardness. Lower speed for harder materials
or dry cutting. Increase speed when using
TiAlN coating ( plus 20% SFM x equal IPR ).
Choose feed curve number. Use higher feed curve
for softer continuously chipping material. Add
feed withdrawls as needed to lubricate cutting
edges and clear chips on deeper holes.
For inch per minute penetration rate see
"PenertrationRate Table".
Exact revolutions per minute are calculated using
formula located below table.
Exact inch per revolution feed see feed curve -
feed multiplier (FM*) table.

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No.

Material
Being Cut

See Page 104 For Details

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DURAPOINTâ

Tool Group

SOLID CARBIDE NON-COOLANT FED

CARBIDE TIP
NON-COOLANT FED

High
Penetration

C2/K20

High
Penetration

C5/P40

Standard
Helix

Straight
Flute
Heavy
Duty

Bore Drill
Straight
Flute

Standard
Helix &
Core Drill

Straight
Flute
Heavy
Duty

Aluminnum Alloys [ <5% Si ]
2011 2014 2024 6061 7075

(12)

250450

(12)

250450

(6-7)

200-400

Aluminnum [ ³5% Si ]
AZ61A 319 355 356 380 390

(12)

350-600

(6-7) a

150-350

(6-7)

200-400

(6-7)

150-350

Copper-Znc [ Brass ]
268-Yellow 360-FreeCut
464-Naval 836-Red

(9)

200-400

(5-6) a

150-300

(4-5)

150-300

(4-5)

150-300

(5-6)

150-300

(4-5)

150-300

Copper Alloys [ Bronze ]

510-Phos. Bronze
905-Tin Bronz

614-Alum.-Bronze

(9)

200-400

(5-6)

150-250

(4-5)

150-250

(4-5)

150-300

(5-6)

150-300

(4-5)

150-200

Cast [ Grey ] Iron

G3000
G4000

G4500
G5500

(9-10)

150-350

(5-7)

150-300

(5-6)

200-350

(5-7)

150-225

Ductile [ Nodular ] Iron Powder Metal

D4018
60-40-18

65-45-12
80-55-06

100-70-03

(9)

150-300

(9)

150-300

(4-6)

150-250

(3-5)

150-250

(4-6)

125-275

Carbon Steels [ £ 35C ]

1018
1035
1117

1215
5120
5134

8620
9310
4118

4130
516-70
4620

(8)

150-250

(10-11)

200-350

Medium Carbon Steels
[ >.35 to .50 C ]

P20
1045
1050

1141
1144
1541

4140
4150
4340

6150

(6-8)

150-250

(6-8)

130-220

High Carbon And Tool Steels
[ >.50 C ]

A2
D2

H13
M2

O1
S7

(5-7)

80-140

(5-7)

65-120

(1-2)

60-125

(1-2)

60-125

Hardened Steels [ 48-65Rc ]

(1-2)

40-80

(1)

25-60

(1)

25-60

Free Machining Stainless Steel

303

440F

(5-6)

100-200

(3-5)

80-180

(2-3)

80-180

(3-4)

80-160

Stainless Steel

Nitronic50
15-5PH

17-4PH
304

316
321

410
440

(5-6)

90-150

(5-6)

90-150

(3-5)

60-140

(2-3)

60-140

Titanium
Commercially Pure = Type B Tool

6AL4V

(5-6)

60-120

(5-7)

55-110

(3-5)

50-90

(2-3)

50-100

(2-3)

40-80

Moderate Temprature Alloys

Inconel

718

(2-3)

50-100

(1-2)

50-100

High Temprature Alloys

Rene

Hastelloy

L605

(2-3)

25-80

(1-2)

25-80

(2-3)

50-100

Hard Plastics, Resin Fiberglass,
Graphite Carbon

(3-5)

100-200

(3-5)

100-200

SFM	=	Surface Feet Per Min.
RPM (Rev. Per Min.)	=	SFM x 3.82 Tool Æ Decimal (Inch)
IPR (Inch Per Rev.)	=	*FM x Tool Æ (Use Four Place Decimal Diameter)**
IPM (Inch Per Min.)	=	RPM x IPR

Most Apporiate

Occasionally Apporiate

Don't Use

( Feed Curve ) Notes

SFM=Surface Feet Per Minute

        NOTES:
           a. 1to 2xÆ deep holes only.
           b. Use more aggressive points.
           c. Use less aggressive points.