Feature:
☆countersinking is a two-step process: pilot hole first, followed by the countersink.
It's effective, but time consuming.
However, a wide variety of combination countersinks do both tasks at the same time.
☆The most important thing to keep in mind when using a countersink is to match the size correctly to the screw being used.
A too-large countersink will swallow the head of a screw in what will look like a moon-sized crater;
A too-small countersink won't fit the screw head, and forcibly driving the screw in can tear the wood fibers around the countersink.
☆If you don't drill the countersink deep enough, the screw will remain proud of the surface;
go too deep and the screw will seat too shallow.
Product Specification:
Material:High Speed Steels
Size:6mm,8mm,12mm,16mm,19mm
Quantity: 6 Drills
Package include:
1 x 6mm Drill
1 x 8mm Drill
1 x 9mm Drill
1 x 12mm Drill
1 x 16mm Drill
1 x 19mm Drill
Feature:
☆countersinking is a two-step process: pilot hole first, followed by the countersink.
It's effective, but time consuming.
However, a wide variety of combination countersinks do both task...
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