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Product Specifications:
| Item | Retention Knob |
| Angle Radius | 90° |
| Coolant Fed | Non Coolant Through |
| Coolant Hole Dia. | 0.275" |
| Coolant Supply | Non Coolant Through |
| Features | Magnetic Particle Crack Tested, Tensile And Shear Requirements Per Jis 6339 |
| Flange Thickness | 0.236" |
| Flange To Angle Length | 1.102" |
| Flange To Beginning Of Knob Length | 1.102" |
| Flange To End Of Knob Length | 1.38" |
| Flange To Knob Length | 1.377" |
| Knob Outside Diameter | 0.59" |
| Neck Dia. | 0.393" |
| Neck Diameter | 0.39" |
| Overall Length | 2 9/25" |
| Taper Size | BT40 |
| Thread Pitch | 2 mm |
| Thread Size | M16 |
| Thread Standard | Class 4G6G Metric |
Shipping Info:
| Ship weight (kg) | 0.09 |
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 | |
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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 B40-9000 Retention Knob, Bt40 Taper Size, M16 Thread Size, Class 4G6G Metric, 90 Deg. Angle Radius
€48.40 /unit


