--- --- APWORKSHOP.COM.AU ECONOCUT RANGE OGEE Econocut is an imported range of router bits selected by Carb-I-Tool, providing good value for craft and hobbyist applications. Part # Description A mm A inch B mm B inch C mm C inch EY 7506 B ECONOCUT OGEE 3/16 W/BRG 1/4 36.3 1.43 16.5 21/32 57.1 2-1/4 EY B3 4.8 3/16 17.50 EY 7508 B ECONOCUT OGEE 1/4 W/BRG 1/4 41 1-5/8 19 3/4 57.1 2-1/4 EY B3 6.35 1/4 20.60 EY 7506 B 1/2 ECONOCUT OGEE 3/16 W/BRG 1/2 36.3 1.43 16.5 21/32 66.7 2-5/8 EY B4 4.8 3/16 18.80 EY 7508 B 1/2 ECONOCUT OGEE 1/4 W/BRG 1/2 41 1-5/8 19 3/4 70 2-3/4 EY B4 6.35 1/4 22.00 ![]()
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Router Bits
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CARBIDE TIPPED
TWO FLUTES, WITH BALL BEARING GUIDE
1/4 inch (6.35 mm) and 1/2 inch (12.7 mm) Shank 
M= Metric Size, B = Bearing, 1/2 = 1/2 inch (12.7 mm) Shank - otherwise bits have 1/4 inch (6.35 mm) shank.
In diagrams, A= Cutting Width, B= Flute Length, C= Overall Length (includes bearing and screw), R = Radius of Cut, ID= Inside Diameter