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For Additional Technical Information Please Email - customerservice@newyorktwistdrill.com
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SLOT MILLING |
PERIPHERAL MILLING |
| MATERIAL |
FINISHING |
ROUGHING |
FINISHING |
ROUGHING |
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SFPM |
(FPT) Chip Load |
SFPM |
(FPT) Chip Load |
SFPM |
(FPT) Chip Load |
SFPM |
(FPT) Chip Load |
| Aluminum Alloys |
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| Wrought, Solution |
250-280 |
.003-.004 |
263-294 |
.0036-.0048 |
600-800 |
.007-.010 |
630-840 |
.0084-.012 |
| Treated, Aged |
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| As Cast |
300-350 |
.004-.005 |
315-368 |
.0048-.006 |
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800-1000 |
.007-.010 |
840-1050 |
.0084-.012 |
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| Magnesium Alloys |
450-500 |
.004-.005 |
473-525 |
.0048-.006 |
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800-1000 |
.008-.011 |
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840-1050 |
.0096-.0132 |
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| Brass |
165-185 |
.004-.005 |
173-194 |
.0048-.006 |
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275-350 |
.006-.008 |
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289-368 |
.0072-.0096 |
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| Cast Iron |
55-60 |
.002-.003 |
58-63 |
.0024-.0036 |
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90-125 |
.004-.005 |
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95-131 |
.0048-.006 |
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| Steel |
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| Soft Carbon Steel |
100-110 |
.0025-.003 |
105-116 |
.003-.0036 |
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160-210 |
.005-.006 |
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168-221 |
.006-.0072 |
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| 1029, also Leaded |
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| AISI 1030-1055 Rc |
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| 32, 102,000 PSI, |
60-70 |
.002-.0025 |
63-74 |
.0024-.003 |
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70-90 |
.004-.005 |
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74-95 |
.0048-.006 |
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| 275-325 BHN |
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| AISI 1060-1095 Rc |
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| 42 136,000 PSI |
35-45 |
.002-.0025 |
37-47 |
.0024-.003 |
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60-70 |
.004-.005 |
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63-74 |
.0048-.006 |
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| 325-375 BHN |
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| Medium&HighCarbon |
25-30 |
.005-.001 |
26-32 |
.006-.0012 |
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45-55 |
.001-.0015 |
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47-58 |
.0012-.0018 |
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| Rc 49, 168,000 PSI |
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| Tool Steels |
50-65 |
.002-.0025 |
53-68 |
.0024-.003 |
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85-110 |
.004-.005 |
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89-116 |
.0048-.006 |
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| S1-S7, L2, L3, L6 |
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| Annealed, 200-250 |
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| BHN |
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| A2-A10, 01-07 |
45-50 |
.0015-.002 |
47-53 |
.0018-.0024 |
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75-90 |
.003-.004 |
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79-95 |
.0036-.0048 |
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| Annealed, 200-250 |
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| BHN |
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| D2-D7 Annealed |
35-40 |
.0015-.002 |
37-42 |
.0018-.0024 |
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55-65 |
.003-.004 |
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58-68 |
.0036-.0048 |
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| 200-250 BHN |
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| Titanium Alloys |
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| Commercially Pure |
85-95 |
.005-.006 |
89-100 |
.006-.0072 |
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140-170 |
.006-.007 |
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147-179 |
.0072-.0084 |
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| 140-200 BHN |
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| 5Al-2.5 Sn Annealed |
50-55 |
.004-.005 |
53-58 |
.0048-.006 |
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100-110 |
.005-.006 |
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105-116 |
.006-.0072 |
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| 6Al-4V Annealed |
55-60 |
.004-.005 |
58-63 |
.0048-.006 |
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90-100 |
.005-.006 |
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95-105 |
.006-.0072 |
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| 310-350 BHN |
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| 6Al-4V Solution |
45-50 |
.004-.005 |
47-53 |
.0048-.006 |
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75-90 |
.004-.006 |
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79-95 |
.0048-.0072 |
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| Treated,320-380 BHN |
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| 6Al-4V-2Sn, Solution |
45-50 |
.004-.005 |
47-53 |
.0048-.006 |
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70-80 |
.004-.006 |
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74-84 |
.0048-.0072 |
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| Treated 375-420 BHN |
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| High Temp Alloys |
13-15 |
.003-.004 |
14-16 |
.0036-.0048 |
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20-30 |
.002-.004 |
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21-32 |
.0024-.0048 |
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| Hastaloy X, Inconel |
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| Nickel Base,Wrought |
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| cold drawn |
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| Inconel X 718 |
7-8 |
.002-.003 |
7-8 |
.0024-.0036 |
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12-15 |
.002-.003 |
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13-16 |
.0024-.036 |
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| Monel, Nickel |
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| wrought & cast |
30-33 |
.004-.005 |
32-35 |
.0048-.006 |
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65-85 |
.004-.005 |
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68-89 |
.0048-.006 |
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| 115-240 BHN |
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| Stainless Steel |
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| Free Machining |
75-85 |
.002-.0025 |
79-89 |
.0024-.003 |
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125-160 |
.004-.005 |
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131-168 |
.0048-.006 |
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| Annealed-Cold Drawn |
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| 300 Series Cold- |
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| Drawn Austenitic |
65-75 |
.002-.0025 |
68-79 |
.0024-.003 |
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110-145 |
.004-.005 |
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116-152 |
.0048-.006 |
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| 225-275 BHN |
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| 17-4 PH Annealed |
55-60 |
.0015-.002 |
58-63 |
.0018-.0024 |
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90-100 |
.003-.004 |
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95-105 |
.0036-.0048 |
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| 150-200 BHN |
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| 17-4 PH Hardened |
40-45 |
.0015-.002 |
42-47 |
.0018-.0024 |
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65-80 |
.002-.003 |
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68-84 |
.0024-.0036 |
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| 325-375 BHN |
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