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Crown Moulding 4-1/4" - 20

Crown Moulding 4-1/4" - 20

This attractive crown moulding 4-1/4" - 20 measures 4.250" wide by 1.125" thickness, allowing the pattern to be milled for five or six quarter lumber. The symmetrical profile is comprised of a 4-1/16" radius cavetto positioned in the center of the pattern, flanked by an elliptical shaped half round circle with an attached 5/32" by 11/32" squared lines on both the top and bottom of the detail. The spring angles are fixed at forty-five degrees, these specific back bevels set the installed height & projection at an identical dimension of 3" tall and wide.

Try one of our 125% concentration ultimate borazon grinding wheels. Finish grinding at 3000 rpm with a twenty-degree back clearance angle, will create a superior micro edge on all your high-speed steel knives. During the machining process these cutters will be capable of milling some of the finest quality architectural mouldings you have ever produced.

For knife quoting purposes click to open the calculator below, we have added only the important measurements, just enter the appropriate dimension in the boxes provided. A brief detailed explanation on how to use the calculator is located here. Need some assistance with the dimensions? Print a copy of our fraction - decimal - millimeter chart, place it on the molder to help operators save time and increase accuracy during machine setup.

Width = 4.250" / Depth of Cut = .750" (top knives.)

Thickness = 1.125" / Depth of Cut = .898" (right blades) & .898" (left cutters.)

Molding Knife Calculator

Moulding Size
(inches)

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Depth of Cut
(inches)

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Grade of Steel

Subtotal

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Custom Moulding Template

$35.00
$35.00
$35.00

Total
(Template & 2 Knives)

$0.00
$0.00
$0.00

Note: If you’re experiencing trouble printing to Full Scale, Go to File, Print Preview. Change the “Shrink to Fit” option to 100%

To purchase a copy of this template ready dxf file for creating acrylic templates to produce knives please send $5.00 via PayPal.Me/MirrorReflections we will email you the dxf file shortly after payment is received.

Copyright © Mirror Reflections Inc. All rights reserved.