Hole Making HY Drilling Tool Series
Cutting Data Recommendation for HY series
Materials
Recommendation for HY series
Brinell hardness (HB)
Tensile strength (N/mm²)
AP273U AP371M Vc（m/min） Vc（m/min） Vc（m/min） ● ● ● AC371P
ISO
Material classification
C≤0.25%
Annealed
125
428
200
150
130 240 180
160
-
-
-
0.25 ＜ C ≤ 0.55%
Annealed
190
639
190
150
120 200
160
120 -
-
-
0.25 ＜ C ≤ 0.55%
Heat-treated
210
708
180 140 100 190
150
120 -
-
-
Non-alloyed steel
C＞0.55%
Annealed
190
639
180 140 100 190
150
120 -
-
-
C＞0.55%
Heat-treated
300
1013
150
110
75 160
120 90 -
-
-
Free cutting steel (short chip)
Annealed
220
745
180 140 100 190
150
120 -
-
-
Annealed
175
591
160
130 100 180 140 100 -
-
-
Heat-treated
300
1013
150
110
75 160
120 90 -
-
-
Low-alloyed steel
Heat-treated
380
1282
-
-
-
-
-
-
-
-
-
Heat-treated
430
1477
-
-
-
-
-
-
-
-
-
Annealed
200
675
180 140 100 190
150
120 -
-
-
High-alloyed steel and highalloyed tool steel
Hardened and tempered
300
1013
150
110
75 160
120 90 -
-
-
Hardened and tempered
400
1361
-
-
-
-
-
-
-
-
-
Ferritic/Martensite，Annealed
200
675
180 140 100 190
150
120 -
-
-
Stainless steel
Martensite,Heat-treated
330
1114
-
-
-
-
-
-
-
-
-
Austenitic, hardened
200
675
150
120 90 -
-
- 140 120 90
Austenitic,precipitation hardened stainless steel (PH stainless steel)
Stainless steel
300
1013
130 100 80 -
-
- 130 100 80
Austenitic, ferritic,duplex
230
778
130 100 80 -
-
- 130 100 80
Ferritic
200
400
150
120
85
200
150
110 -
-
-
Malleable cast iron
Pearlitic
260
700
110 90
65 150
120 80 -
-
-
Low tensile strength
180
200
200
150
130 240 180
160
-
-
-
Grey cast iron
High tensile strength/Austenitic
245
350
150
110
75 160
120 90 -
-
-
Ferritic
155
400
140 110 80 180 140 100 -
-
-
Nodular cast iron
Pearlitic
265
700
130 100 70
160
120 90 -
-
-
GGV(CGI)
230
400
-
-
- 130 100 70 -
-
-
non-aging
30
-
-
-
-
-
-
-
-
-
-
Wrought aluminium alloys
aged
100
340
-
-
-
-
-
-
-
-
-
≤12% Si，non-aging
75
260
-
-
-
-
-
-
-
-
-
Cast aluminium alloys
≤12% Si，aged
90
310
-
-
-
-
-
-
-
-
-
＞12% Si，non-aging
130
450
-
-
-
-
-
-
-
-
-
Magnesium alloy
70
250
-
-
-
-
-
-
-
-
-
Non-alloyed steel, electrolytic copper
100
340
-
-
-
-
-
-
-
-
-
Brass, bronze, red brass
90
310
-
-
-
-
-
-
-
-
-
Copper and copper alloy (bronze/brass)
Cu alloy, short chip
110
380
-
-
-
-
-
-
-
-
-
High tensile, Ampco alloy
300
1010
-
-
-
-
-
-
-
-
-
Annealed
200
680
-
-
-
-
-
-
90
60
40
Fe-based
Aged
280
940
-
-
-
-
-
-
70
50
30
Annealed
250
840
-
-
-
-
-
-
70
50
30
Heat-resistant alloy
Ni or Co based
Aged
350
1180
-
-
-
-
-
-
50
40 30
Cast
320
1080
-
-
-
-
-
-
50
40 30
Pure Titanium
200
680
-
-
-
-
-
- 120 90
60
Titanium alloys
α and β alloy, aged
375
1260
-
-
-
-
-
-
90 70
50
β alloy
410
1400
-
-
-
-
-
-
-
-
-
Tungsten alloy
300
1010
-
-
-
-
-
-
-
-
-
Molybdenum alloy
300
1010
-
-
-
-
-
-
-
-
-
Hardened and tempered
50HRC
-
-
-
-
-
-
-
-
-
Hardened steel
Hardened and tempered
55HRC
-
-
-
-
-
-
-
-
-
Hardened and tempered
60HRC
-
-
-
-
-
-
-
-
-
Chilled cast iron - *This table shows the general cutting conditions, and the actual selection should be adjusted according to factors such as equipment rigidity, drilling depth, workpiece clamping and cooling pressure. Hardened and tempered 55HRC - - - - - - - -
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