Drill Bit KWB 513190 Hardened Steel 11mm Depth 205mm Height

Arbour-mounted countersink bit set, 8 pieces, containing the most common sizes for woodwork: 3.0, 3.5, 4.0, 4.5, 5.0, 5.5 and 6.0 mm. Each tool combines a 4-flute drill and an attached adjustable countersink made from C45 steel. The set includes a depth stop and a round shank for use in standard arbors; a hex key is supplied. The bits are intended to drill and countersink holes in soft wood, allowing screws to be recessed flush.

Advantages

The set groups the most frequently used diameters in one package, reducing the need to change tools during wood assembly. Hardened C45 construction offers wear resistance for common woodworking tasks. Integrated adjustable countersinks with depth stop provide consistent recess depths, while the 4-flute drill geometry ensures stable cutting and faster chip removal. The supplied hex key and blister storage bag simplify setup and storage.

Suitable for

• Drilling and countersinking pilot holes in softwood
• Preparing screw recesses for flush-mounted fasteners
• Joinery and furniture assembly requiring multiple standard diameters

Key specifications

• Set composition: 8 arbour-mounted countersink bits (3.0–6.0 mm)
• Material: C45 steel (hardened)
• Drill: 4-flute design with attached adjustable countersink
• Features: depth stop included, round shank, hex key included
• Packaging: blister storage bag

How to use

Mount the required bit into an appropriate arbor or drill chuck with a compatible round shank. Adjust the countersink depth to the desired recess using the depth stop and secure the setting with the provided hex key. Position the bit on the marked location and drill at suitable speed for softwood, allowing the drill to form the pilot hole while the countersink creates the screw recess. Clean chips between operations and check recess depth before inserting screws.

Usage recommendations

Use moderate drilling speed and steady feed when working in softwood to avoid tear-out. Verify the countersink depth on a scrap piece before working on the final assembly. Keep cutting edges clean and replace bits when wear affects hole quality.