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Drilling & Screws
Wood Drills Forstner Bits Countersinks

Countersinks

Countersink WS
Pre-drill/centering drill for countersink
Guide Pin for Countersink
Countersink Sets
Accessories for Countersinks
FAQ, Videos and more

The classic countersinks and countersink drills are designed for countersunk screws (with a conical underside). However, there are a variety of screws whose underside is flat. Sometimes you also want to insert a washer under the screw head. If such a carriage bolt or cylinder head screw is to be countersunk, the countersink must be made as a blind hole with a flat bottom. For this purpose, a countersink is used. These tools are similar to Forstner drills. They either have a central centring bit with which the through hole for the screw is drilled, or they are fitted with a tang which is inserted into a pre-drilled hole in order to place the countersink correctly.

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Lowering device

AØ: 90 mm | NL: 150 mm | GL: 330 mm
Delivery time 1-2 days
EUR 173.75 *

COUNTERSINKING LOCK SCREWS AND CYLINDER HEAD SCREWS

Alternatively, we offer cylindrical countersink drills in our range that drill a suitable countersink for the cylindrical underside of the screw. These countersinks can be a cheaper solution compared to the countersinks.