--- --- APWORKSHOP.COM.AU Router Bits ACCESSORIES BALL BEARINGS Care of bearings: All bearings should be kept free of dust and dirt. Clean in glue solvent and lightly oil after each use. Note- for Carbi-Smooth (Delrinª coated) bearings see here and for bearings for Replaceable Insert router bits see here Part # Description A inch A mm B inch B mm Int. Diam. inch Int. Diam. mm A$ TB 6 BEARING OD 1/4 ID 1/8 1/4 6.35 7/64 2.7 1/8 3.2 8.40 TB 7 BEARING OD 1/2 ID 1/4 1/2 12.7 3/16 4.8 1/4 6.35 8.40 TB 8 BEARING OD 5/8 ID 3/16 5/8 15.9 3/16 4.8 3/16 4.8 6.10 TB 9 BEARING OD 3/8 ID 3/16 3/8 9.5 1/8 3.2 3/16 4.8 6.10 TB 10 BEARING OD 3/8 ID 1/8 3/8 9.5 5/32 4 1/8 3.2 6.10 TB 11 BEARING OD 1/2 ID 3/16 1/2 12.7 3/16 4.8 3/16 4.8 6.10 TB 12 BEARING OD 22 mm ID 8 mm 0.866 22 0.275 6.9 5/16 8 6.10 TB 13 BEARING OD 24 mm ID 8 mm 0.945 24 5/16 8 5/16 8 6.10 TB 14 BEARING OD 5/8 ID 1/4 5/8 15.9 3/16 4.8 1/4 6.35 6.10 TB 15 BEARING OD 13/16 ID 1/4 13/16 20.6 19/64 7.6 1/4 6.35 16.80 TB 16 BEARING OD 3/4 ID 1/4 3/4 19 9/32 7.1 1/4 6.35 6.10 TB 17 BEARING OD 28 mm ID 12 mm 1.102 28 5/16 8 0.472 12 8.40 TB 18 BEARING OD 1 1/8 ID 1/2 1-1/8 28.6 5/16 8 1/2 12.7 8.40 M= Metric Size, H= High Speed Steel, T= Carbide Tipped or Solid Carbide, A= Carbide Tipped on Nose (Pilot Panel Bits) B= Ball Bearing Guide, E/C = End Cutting, S = Single Flute, X= Long series bits not warrantied against breakage, XX= Extra long series bits not warrantied against breakage. Where bits are available in various arbor/shank diameters, suffix indicates: 5/16 inch, 3/8 inch, 1/2 inch, 10 mm (otherwise 1/4 inch). In diagrams, A= Cutting Width, B= Flute Length, C= Overall Length (includes bearing and screw), R, R1 or R2 = Radius of Cut, E= Pilot or Bearing Width, G= Depth of Cut, Bevel = Bevel, ID= Inside Diameter, T= Wood Thickness. ![]()
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A = External Diameter, ID = Internal Diameter
