Warning: Make sure the router bit is properly fastened and tightened in the router’s collet and the bit can rotate freely without any obstructions.
Instructions: Slowly dial up the RPMs on your router to the recommended maximum. Then, dial back if needed to find the “sweet spot”. The sweet spot is the speed at which the least resonant vibration is present. If the sweet spot cannot be achieved within 5,000 RPMs of the max, check the collet for residue or other debris and start over.
Download Router Bit RPM Chart
|
Bit Diameter (Inches)
|
Max RPM
|
Min RPM
|
|---|---|---|
|
1
|
24,000
|
19,000
|
|
1.1
|
24,000
|
19,000
|
|
1.2
|
24,000
|
19,000
|
|
1.3
|
24,000
|
19,000
|
|
1.4
|
24,000
|
19,000
|
|
1.5
|
24,000
|
19,000
|
|
1.6
|
22,500
|
17,500
|
|
1.7
|
21,100
|
16,100
|
|
1.8
|
20,000
|
15,000
|
|
1.9
|
18,900
|
13,900
|
|
2
|
18,000
|
13,000
|
|
2.1
|
17,100
|
12,100
|
|
2.2
|
16,300
|
11,300
|
|
2.3
|
15,600
|
10,600
|
|
2.4
|
15,000
|
10,000
|
|
2.5
|
14,400
|
9,400
|
|
2.6
|
13,800
|
8,800
|
|
2.7
|
13,300
|
8,300
|
|
2.8
|
12,800
|
7,800
|
|
2.9
|
12,400
|
7,400
|
|
3
|
12,000
|
7,000
|
|
3.1
|
11,600
|
6,600
|
|
3.2
|
11,200
|
6,200
|
|
3.3
|
10,900
|
5,900
|
|
3.4
|
10,500
|
5,500
|
|
3.5
|
10,200
|
5,200
|
Cut back angles on crown moldings and cornices with Yonico's Crown Molding Miter Router Bit. As an alternative to 45° installation, 52°/38° angles enables moldings and cornices to be installed at the tilt with the most eye appeal. While high ceiling crown moldings will show best when angled downward, a crown molding installed on a low ceiling or a cornice installation will look best when angled upwards.