Countersink drill bit KWB 513050 3 pcs 1.2 cm diameter

KWB countersink drill bit set 513050 includes three carbon-steel slip-on countersinks with a 90° angle and 5 flutes, sized to fit onto HSS and wood drill bits with a 1.2 cm diameter. The set is designed to perform drilling and countersinking in a single operation, producing clean, accurately centered countersinks for flush fitting of countersunk screws in wood and suitable for use with compatible metal drill bits.

Advantages

The 5-flute design delivers smooth cutting and controlled chip removal while the carbon-steel construction provides reliable stiffness for wood and light metal work. Slip-on mounting onto existing HSS or wood drill bits allows quick replacement and flexible use without changing the primary drill. The 90° countersink angle matches standard countersunk screws for flush fitting.

Suitable for

• Drilling and countersinking pilot holes in wood for countersunk screws
• Combined drilling and countersinking with HSS drill bits in light metal
• Timber joinery, furniture assembly and general woodworking tasks

Key specifications

• Brand: KWB
• Model / MPN: 513050
• EAN: 4009315130507
• Set quantity: 3 pieces
• Countersink diameter: 1.2 cm
• Material: carbon steel
• Countersink angle: 90°
• Flutes: 5
• Mounting: slip-on to HSS and wood drill bits

How to use

Select an appropriately sized HSS or wood drill bit, slide the slip-on countersink onto the drill bit shank until it seats firmly, secure the drill bit in the drill chuck, and operate at a moderate speed. Apply steady pressure to allow the countersink to cut cleanly; the tool performs drilling and countersinking in one pass. After use, remove the countersink and clean chips from flutes before storage.

Usage recommendations

Use appropriate personal protective equipment (eye and hearing protection). Choose drill speed and feed rate according to the work material—lower speeds for harder metals, moderate speeds for wood. Ensure the slip-on countersink is compatible with the diameter and shank type of your drill bit before use.