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Product Specifications:
| Item | Retention Knob |
| Angle Radius | 90° |
| Coolant Fed | Non Coolant Through |
| Coolant Supply | Non Coolant Through |
| Features | Piloted |
| Flange To Angle Length | 35.15 mm |
| Knob Outside Dia. | 22.94 mm |
| Neck Dia. | 16.97 mm |
| Overall Length | 85.22 mm |
| Taper Size | BT50 |
| Thread Size | 1"-8 |
Shipping Info:
| Ship weight (kg) | 0.29 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 8.52 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | Taper Size | Knob Outside Dia. | Flange To Angle Length | Neck Dia. | Angle Radius | Coolant Fed | Features | Coolant Supply | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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RK40ISBM | 40 | 18.8 mm | 11 mm | 12.8 mm | 45° | Coolant Through | Piloted | Coolant Through | €52.10 | |
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RK40ISAM | 40 | 18.95 mm | 20 mm | 13.95 mm | 75° | Coolant Through | Piloted | - | €98.15 | |
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RK50AV1M | 50 | 29.1 mm | 17.95 mm | 19.6 mm | 45° | Coolant Through | No Pilot | Coolant Through | €141.16 | |
![]() |
RK50ISAM | 50 | 27.95 mm | 25 mm | 20.95 mm | 75° | Coolant Through | Piloted | Coolant Through | €136.89 | |
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RK30BT1M | BT30 | 10.95 mm | 17.95 mm | 6.95" | 45° | Non Coolant Through | Piloted | Non Coolant Through | €110.69 | |
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RK30BT2M | BT30 | 10.95 mm | 17.95 mm | 6.95" | 60° | Non Coolant Through | Piloted | Non Coolant Through | €110.69 | |
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RK31114B | BT40 | 14.96 mm | 25.1 mm | 9 24/25" | 90° | Non Coolant Through | Piloted | Non Coolant Through | €62.47 |
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Contact us
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ERICKSON RK31118B Retention Knob, Bt50 Taper Size, 1 Inch Size-8 Thread Size, 90 Deg. Angle Radius
€57.03 /unit



