Easy to use 1/4″ hexagonal shank 3mm-13mm Titanium Coated HSS Step Cone Drill Bit for cutting into wood or metal thin plate or hollow section .
$16.98 Includes GST
These 3mm-13mm Step Drill Bits are brand new easy to use 1/4″ hexagonal shank 3mm-13mm Titanium Coated HSS Step Cone Drill Bit for cutting into wood or metal thin plate or hollow section . Each tool produces a clean chamfered hole in the material. Can be used on plate, bar, tube, or box section. Cutting fluid or drill lubricant is recommended (the type of fluid depends on the material being machined). As with all machinging, it is best to go slow, keep the tool cool, and use LOTS of lubricant. They are industry fabrication quality and IMHO – one of the best hand tools around.
Choose a clean dry surface and mark your intended spot. We recommend that you center punch the material to prevent ‘wandering’. Apply lubricant, and with your step drill located in your variable speed reversing drill – simply drill and tap your hole.
Please understand that failure to use lubricant and or drilling fast can radically reduce the life of the 3mm-13mm Step Drill Bit as a dull or burnt tip on the drill tap pretty much destroys the tool.. Injecting cold water while working, can effectively extend the service life of the drill bit.