Countersinks
Weldon 82° countersinks and deburring tools, plus ITM diamond countersinks for tile. For seating flat-head screws, chamfering drilled holes and taking burrs off after drilling.
Choosing a countersink
A countersink cuts a cone at the mouth of a hole. Use it to seat a flat-head screw flush, to chamfer a drilled hole, or to knock the burr off after drilling. This range is mostly Weldon, with four ITM diamond countersinks for tile.
The 82° countersinks fit standard inch flat-head screws. They come by screw size (5/16" and 1/2" are two examples) or as pointless countersinks that cover a range of hole sizes, such as 1/8" through 11/32". Deburring tools come in 60° and 90° versions.
Drilling tips
Run slowly with light pressure, and use cutting oil on steel. Cut a little, test the screw, then cut more. It is easy to go too deep and impossible to go back. If the tool chatters, slow down. For tile, use a diamond countersink with water, in rotation only. Screw work starts with the 82° countersinks.
Free shipping on orders over $200. Trade accounts can reorder in a click from My Toolbox, or call (833) 438-6657.
Common questions
Should I use an 82° or a 90° countersink?
Inch flat-head screws have an 82° head, so use an 82° countersink for them. The 90° tools in this range are deburring tools, made to break the edge of a hole rather than seat a screw head.
What is a pointless countersink?
It has no drill point, so it works on a hole that is already drilled. Each one covers a range of hole sizes, such as 1/8" through 11/32", so one tool handles several drill sizes.
Can I countersink tile?
Use a diamond countersink, not a steel one. ITM makes them for tile in four sizes. Run them with water, light pressure and rotation only.
Buying for a crew?
Call 833-438-6657, 8 AM to 4 PM MST. We know the parts, not just the part numbers.