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Product Specifications:
| Item | Retention Knob |
| Angle Radius | 45° |
| Coolant Fed | Non Coolant Through |
| Coolant Supply | Non Coolant Through |
| Features | Magnetic Particle Crack Tested, Tensile And Shear Requirements Per Iso And Jis |
| Flange Thickness | 0.393" |
| Flange To Angle Length | 1.385" |
| Flange To Beginning Of Knob Length | 1.386" |
| Flange To End Of Knob Length | 1.78" |
| Flange To Knob Length | 1.779" |
| Knob Outside Dia. | 0.905" |
| Knob Outside Diameter | 0.91" |
| Neck Dia. | 0.669" |
| Neck Diameter | 0.67" |
| Overall Length | 3.28" |
| Taper Size | CAT50 |
| Thread Size | 1"-8 |
| Thread Standard | Class 3A UNC |
Shipping Info:
| Ship weight (kg) | 0.27 |
Product Variants
| Product | Model | Angle Radius | Flange Thickness | Flange To Angle Length | Coolant Fed | Neck Dia. | Flange To Knob Length | Thread Standard | Taper Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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B30-4500 | 45° | 0.196" | 0.708" | Non-Coolant Through | 0.275" | 0.905" | Class 4G6G Metric | BT30 | €36.56 | |
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B30-6000 | 60° | 0.196" | 0.708" | Non Coolant Through | 0.275" | 0.905" | Class 4G6G Metric | BT30 | €47.41 | |
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B35-6000 | 60° | 0.196" | 0.885" | Non Coolant Through | 0.35" | 1.102" | Class 4G6G Metric | BT35 | €44.06 | |
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B40-STD | 45° | 0.13" | 0.433" | Coolant Through | 0.503" | 0.639" | - | BT40 | €79.16 | |
![]() |
B40-4500 | 45° | 0.236" | 1.102" | Non Coolant Through | 0.393" | 1.377" | Class 4G6G Metric | BT40 | €44.66 | |
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B40-4500(H) | 45° | 0.236" | 1.102" | Coolant Through | 0.393" | 1.377" | Class 4G6G Metric | BT40 | €43.42 | |
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B40-FADAL | 45° | 0.236" | 0.551" | Non-Coolant Through | 0.49" | 0.751" | Class 4G6G Metric | BT40 | €52.54 |
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Contact us
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LYNDEX-NIKKEN C50-4500(B) Retention Knob, Cat50 Taper Size, 5/8-11 Thread Size, Class 3A Unc, 45 Deg. Angle Radius
€113.76 /unit


