B400 2-Flute Doodad™ Whip Guide Bushings
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Drill straighter gun barrels with whip guide bushings from F.J. Feddersen.
F.J. Feddersen’s 25 mm (B400 Series) 2-Flute Doodad™ Whip Guide Bushings are essential accessories for drilling straight and accurate gun barrels during manufacturing. The higher the RPM, the more the tube will whip because the tube has been crimped 110-120 degrees off-center. The result is a tube that is out of balance. FJ Feddersen’s Whip Guide Bushings help to tame the whipping by centering the drill. There is no way to stop single flute gun drills from whipping without using guide bushings such as these. FJF Feddersen makes Whip Guide Bushings in the most popular sizes for practically every application up to 65 mm.
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Info | SKU | Series | Gun Drill Size | Tube Diameter | Bushing ID | Web Width | Pricing |
|---|---|---|---|---|---|---|---|
 | 2D593 | B400 Series 25 mm | 0.608 | 0.593 In. 15.06 mm | 0.578 In. 14.68 mm | 0.365 in. | $5.25$5.75 |
| 2D609 | B400 Series 25 mm | 0.625 | 0.609 In. 15.46 mm | 0.593 In. 15.06 mm | 0.375 in. | $5.25$5.75 |
| 2D640 | B400 Series 25 mm | 0.656 | 0.640 In. 16.25 mm | 0.625 In. 15.87 mm | 0.390 in. | $5.25$5.75 |
| 2D671 | B400 Series 25 mm | 0.687 | 0.671 In. 17.04 mm | 0.656 In. 16.66 mm | 0.412 in. | $5.25$5.75 |
| 2D687 | B400 Series 25 mm | 0.702 | 0.687 In. 17.44 mm | 0.671 In. 17.04 mm | 0.422 in. | $5.25$5.75 |
| 2D703 | B400 Series 25 mm | 0.718 | 0.703 In. 17.85 mm | 0.687 In. 17.44 mm | 0.430 in. | $5.25$5.75 |
| 2D718 | B400 Series 25 mm | 0.734 | 0.718 In. 18.23 mm | 0.703 In. 17.85 mm | 0.440 in. | $5.25$5.75 |
| 2D734-4 | B400 Series 25 mm | 0.75 | 0.734 In. 18.64 mm | 0.718 In. 18.23 mm | 0.450 in. | $5.25$5.75 |