HELICOILS

1. I SAW IN YOUR LASTEST WOODWORKER EDITION,DRILL AND TAPPING TIMBER FOR EASY ASSEMBLY OF JIGS .NOT A BAD IDEA?BUT IN THE PAST I HAVE ALWAYS DRILLED AND TAPPED TIMBER ESPECIALLY PINE  AS ITS A SOFT WOOD THEN I HELICOILED IT BEFORE INSERTING THE THREADED SCREW OR BOLT.

AS NOWADAYS AS EVEN YESTERYEAR YOU CAN GET ANY SIZE THREAD AND THEN DRILL AND TAP AND HELICOIL .ITS A STRONGER FIXING.DRILL AND TAP DESIRED TIMBER THEN HELICOIL IT THEN SCREW TOGETHER.THIS CAN BE USED TO MAKE FURNITURE ASWELL. THEY USE HELICOILS IN THE ENGINEERING INDUSTRY IF A ENGINE NEED A REFURB AND A THREAD IS DAMAGED? THEY DRILL OUT A DAMAGED THREAD RETAP THEN HELICIOL SO THE THREAD IS THE SAME ALL ROUND. YOU CAN BUY KITS WITH ALL THE DRILL AND TAP SIZES AND HELICOILS.FROM MM TO UNF SIZES. AS ALWAYS I ALWAYS COMBINE MY ENGINEERING SKILLS WITH MY WOODWORK SKILLS AND THEY WORK WELL TOGETHER.THATS WHY I ALWAYS MAKE MY OWN  TURNING TOOLS / SCREW CHUCKS / FACE PLATES / ECT.BECAUSE IF I SEE A TOOL I CAN MAKE AND SEE THE PRICE A COMPANY WANTS FOR THAT TOOL AND I THINK ITS EXPENSIVE I WILL BUY THE MATERIALS AND MAKE MY OWN.MY SCREW CHUCK .THE ONE IN LAST BLOG I MADE COST ME £6.75 FOR A 18 INCH LENGHT OF 2 1/2 INCH DIAMETER BRIGHT STEEL. THAT WILL MAKE  6 X SCREW CHUCKS X 1 1/2  HOURS OF MY TIME MAKING IT.ITS NOT IMPOSSIBLE EVERYTHING IS POSSIBLE.