--- --- APWORKSHOP.COM.AU ECONOCUT RANGE ROUND OVER 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 508 B ECONOCUT ROUND OVER 1/4 W/BRG 1/4 25.4 1 13.5 0.53 52 2.05 EY B4 6.35 1/4 16.60 EY 510 B ECONOCUT ROUND OVER 5/16 W/BRG 1/4 28.5 1-1/8 15.5 0.61 56 2.2 EY B4 7.9 5/16 17.30 EY 512 B ECONOCUT ROUND OVER 3/8 W/BRG 1/4 31.8 1-1/4 16.5 21/32 56 2.2 EY B4 9.5 3/8 18.80 EY 516 B ECONOCUT ROUND OVER 1/2 W/BRG 1/4 38.1 1-1/2 19 3/4 60.3 2.37 EY B4 12.7 1/2 20.80 EY 508 B 1/2 ECONOCUT ROUND OVER 1/4 W/BRG 1/2 25.4 1 13.5 0.53 63.5 2-1/2 EY B4 6.35 1/4 17.80 EY 510 B 1/2 ECONOCUT ROUND OVER 5/16 W/BRG 1/2 28.5 1-1/8 15.5 0.61 66.7 2-5/8 EY B4 7.9 5/16 18.40 EY 512 B 1/2 ECONOCUT ROUND OVER 3/8 W/BRG 1/2 31.8 1-1/4 16.5 21/32 66.7 2-5/8 EY B4 9.5 3/8 20.00 EY 516 B 1/2 ECONOCUT ROUND OVER 1/2 W/BRG 1/2 38.1 1-1/2 19 3/4 70 2-3/4 EY B4 12.7 1/2 22.30 ![]()
AUSTRALIA ![]()
![]()
![]()
![]()
![]()
![]()
Router Bits
from

![]()

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