Olha só que dica pra lá de útil.. Incrível e fácil.. (Look at that useful tip. Incredible and easy.

Nesse Vídeo, uma dica excelente para furação com broca especial.
Faça vc mesmo..

Site para compra do produto.
https://www.banggood.com/6_357_949_512_7mm-Woodworking-Square-Hole-Drill-Bit-Mortising-Chisel-Hole-Saw-Drill-Bit-p-1272995.html?rmmds=search&ID=533718&cur_warehouse=CN

Vídeos sugerido:
https://www.youtube.com/watch?v=uCJxE5YcELc
https://www.youtube.com/watch?v=3pO1JiR6wD8
https://www.youtube.com/watch?v=W4NUE6VkfuQ
https://www.youtube.com/watch?v=hG02YKSEa6g
https://www.youtube.com/watch?v=Qc99ZOWV7tg
https://www.youtube.com/watch?v=bK9oEn2eMHM
https://www.youtube.com/watch?v=vhYK50Y_KNY
https://www.youtube.com/watch?v=3BS737pcnQE

Видео Olha só que dica pra lá de útil.. Incrível e fácil.. (Look at that useful tip. Incredible and easy. канала FJS Marchetaria & Projetos