Laguna Tools Smartshop Composite Fabricator 16, Руководство пользователя, Страница: 21 / 77

Types of Router Bits that can be used (Cont’d.) -
3.) Down Shear Router Bits: These bits are similar to the up shear but with an opposite spiral that actually tends to pack the
chips into the kerf. These bits prevent chipping the material surface, especially with veneers or melamine surfaces.
4. Combination (Compression) Router Bits : These bits combine the advantages of both up shear and down shear designs. The top section of the
tool is down shear to prevent chipping the top surface of the material, and the lower part of the bit is up shear to prevent chipping the bottom
surface of the material. Combination Router Bits are the preferred configuration for machining veneered plywood as well as melamine-surfaced
products. A variation of the bit is called the “Mortising Compression” router bit. With this bit, the up shear portion of the bit is less than 1/4" in
length so that the bit can be used on 1/4" veneered plywood and for dados.