B300 2-Flute Doodad™ Whip Guide Bushings

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Drill straighter gun barrels with whip guide bushings from F.J. Feddersen.

B300 2-Flute Doodad™ Whip Guide Bushing by FJ FeddersenF.J. Feddersen’s 20 mm (B300 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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SKU
Series
Gun Drill Size
Tube Diameter
Bushing ID
Web Width
Pricing
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D421
B300 Series
20 mm
0.437
0.421 In.
10.69 mm
0.406 In.
10.31 mm
0.206 in.
$3.25$4.25
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D453
B300 Series
20 mm
0.468
0.453 In.
11.50 mm
0.437 In.
11.09 mm
0.280 in.
$3.25$4.25
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D484
B300 Series
20 mm
0.5
0.484 In.
12.29 mm
0.468 In.
11.88 mm
0.300 in.
$3.25$4.25
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D531
B300 Series
20 mm
0.546
0.531 In.
13.48 mm
0.515 In.
13.08 mm
0.328 in.
$3.25$4.25
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D546
B300 Series
20 mm
0.562
0.546 In.
13.86 mm
0.531 In.
13.48 mm
0.337 in.
$3.25$4.25
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D562
B300 Series
20 mm
0.578
0.562 In.
14.27 mm
0.546 In.
13.86 mm
0.350 in.
$3.25$4.25
B300 2-Flute Doodad™ Whip Guide Bushing by FJ Feddersen
2D578
B300 Series
20 mm
0.593
0.578 In.
14.68 mm
0.562 In.
14.27 mm
0.355 in.
$3.25$4.25