Usage Tips:Package include: 1x router table insert plate (9.3 x 4.7 x 0.4in), 4 x router insert rings, 1 x pack of fixing screws. Compatible Models: for 1hp drt50 In order not to cause trouble, please measure your router hole position Size: Dimensions Router Table Insert is 9.3 x 4.7 x 0.4 inches/235 x 120 x 9 mm, Outside Hole Distance: 2.76 x 2.44 inches/70x 62 mm, Inside Hole Diameter: 2.17 x 1.77 inches/55x 45 mmThis Router Table Insert is suitable for use with most Maktec.In order not to cause trouble, please measure your router hole position WARNING!!! The size of the wood router plate is 9.3 x 4.7 x 0.4inch(235 x 120 x 9mm )Please measure the router hole spacing before purchasing The trimming machine flip board Fine manufacturing, quality , accurate scale, easy to operate.The easy to operate, labor-saving, and easy to operate and expand the use of trimming machine. The woodworking router plate is made of aluminium alloy, , not easy to rust, With clear scale and not easy to wear, it is a nice helper for woodworking. Color: silver material: metal Package Contents: 1 x router table insert plate set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.