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HSS Hole/Shank Type Worm Wheel Hob Cutter PA20
Accuracy: ClassAA, ClassA and ClassB
Module | Pitch Circle Dia. | Working Length | Overall length | Morse taper |
2 | 26 | 45 | 390 | 4 |
2.5 | 30 | 55 | ||
3 | 36 | 65 | ||
3.5 | 42 | 70 | ||
4 | 44 | 80 | ||
4.5 | 49.5 | 85 | ||
5 | 50 | 95 | ||
6 | 54 | 115 |
Module | Pitch Circle Dia. | Overall length | Hole dia. |
5 | 60 | 105 | 22 |
6 | 66 | 125 | 27 |
7 | 63 | 110 | 22 |
7 | 77 | 130 | 27 |
8 | 64 | 120 | 22 |
8 | 88 | 150 | 32 |
Special worm gear hob with circular tooth, double pitch and involute etc. can also be ordered.







Material Introduction:
A. W6Mo5Cr4V2 (GB) M2( ASTM), S6-5-2(DIN), SKH51(JIS)
chemical composition:C 0.85, Si 0.38, Mn 0.35, P≤0.030, S≤0.030, Cr 4.10, W 6.00, Mo 4.80 V 1.85
main application:It is widely used for making all kinds of cutters and durability cold-work die
B. W6Mo5Cr4V2Co5 (GB), M35( ASTM), 1.3243(DIN), SKH55(JIS)
chemical composition: C 0.93, Si 0.38, Mn 0.35, P≤0.030, S≤0.030, Cr 4.10, W 6.30, Mo 4.80 V 1.85, Co 5.00
main application:It is often used for making blades with high-speed and great cutting difficulty as it’s good abrasive resistance
W6Mo5Cr4V2(M2),W9Mo3Cr4V(W9),W18Cr4V(W18),W6Mo5Cr4V2Al(M2Al),W6Mo5Cr4V2Co5(M35),W2Mo9Cr4VCo8(M42),W4Mo3Cr4VSi(4341),W4Mo2Cr4VSi(4241)

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