Adjustable Countersink Drill Bits
( Adjustable Pilot Drill Bits )
Type B, Quick Change Hex Shank

* Drill Bits made from high-speed steel with black oxide finish or Bright Finish.
* Drill, countersink and counter-bore precision screw holes in a single operation with General’s
Adjustable Pilot Bit Set. Featuring high-speed steel drill bits with adjustable lengths, this
veracious set can be a great time saver for fine carpentry and woodworking.
* The 1/4" hex  shank allows the set to be used in both electric drills and power screwdrivers.
* Countersink drill bits form pilot holes for screws and create a conical recess for the screw head.
A countersink drill bit is best used on soft materials such as wood or plastic, and will not work on
metals. It is often preferable to create the countersink first, then drill into the center. Counter sink
drill bits can be used with power drills and some routers. Using a combination counter sink and
clearance drill can create both the counter sink and the pilot hole in one action. An adjustable stop
can be used to fix the depth.
* Naturally different sized countersink drill bits create different sized countersinks and holes. Some
counter sinks are available with fitted handles so that the shallow depression for the screw head
can be formed by hand, eliminating the need to constantly change bits. Some countersink drills can
remove plugs of wood before creating the hole. These plugs can then be used cover the recessed
screw heads.
* Titanium Coated Drill Bits are available on request.
* Countersink Drill Bits Set are available on request.

Size available: