Star-M 58S-S3090 Countersink Drill & Plug Drill Set 3x9x9

A great value set of countersink and dowel drill bits.

[Uses] For drilling pilot holes (3mm), countersinking (9mm), and making wooden dowels (9mm) for screws.

[Features] * For use with impact drivers and electric drills. * Countersink drill bit: Allows simultaneous drilling of pilot holes, countersinking, and dowel holes for embedded screws. * Dowel drill bit: Used for making wooden dowels (wooden dowels) for embedded holes.

[Precautions] * Do not use with power tools that rotate at high speeds (3000 rpm or more).

Countersink drill bit: 3 (pilot hole size) x 9 (countersink size), Dowel drill bit: 9 Shank diameter: 6.35mm hexagonal shank, Countersink drill bit angle: 90 degrees Material: Ordinary steel, plated finish Applicable materials: General wood, Applicable models: Impact driver 14.4V or higher, drill driver 14.4V or higher, electric drill Recommended rotation speed: 3,000 rpm or less