5/16" Diameter x 9/64" Pilot Drill Hole Type C Countersink

Countersink for the heads of screws in woods, plastics, and non-ferrous materials.

A high quality American-made countersink made by WL Fuller. Made of carbon steel & heat-treated, this countersink is very well-built, durable, & cuts into materials well. This type “C” countersink is designed for use in all woods, plastics, & non-ferrous metals. It has four flutes for clean & accurate boring, & a standard 82° cutting angle which will accommodate most bevelled screws.

• Made of carbon steel & heat-treated for long tool life
• For use in all woods, plastics, & non-ferrous metals
• 82° cutting angle head
• Four flutes for clean & accurate boring
• Two hex-socket set screws in countersink

The countersink is held in place with two hex-socket set screws fastened into the bit & is easily adjustable up & down the length of the drill bit if the need arises. This countersink can be mounted on taper point, brad point & regular point drills. A very popular item with our customers.

Made in the USA.