Workkyma M2 Cobalt Countersink Drill Bit 12.4mm Single Flute 90 Degree HSS

Key features

• [Countersink Drill Bit Size]: Cutting Diameter: 12.4 mm / 0.49 inch; Cutting Length: 10 mm / 0.39 inch; Total Length: 56 mm / 2.2 inch; Shank Diameter: 8 mm / 0.31 inch
• [Straightforward Installation/Usage]: Secure the workpiece firmly, align the bit tip to the pre-machined center point, and mount the round shank tightly on the bench drill. Hold the tool at 90 Degree to the vertical and apply slow, steady pressure for expanding, chamfering & deburring. Maintain continuous cooling during processing; lift the spindle smoothly once the target hole size is reached. Cool stainless steel; slow RPM for big bits; hand drill only for soft stock
• [Broad Application]: This countersink drill bit is for hole chamfering, deburring, and countersinking to make screw caps sit flush. Suitable for 304 stainless steel, cast iron, carbon steel, aluminum alloy, copper plate, acrylic, plastic, and wood; great for woodworking and DIY projects. Hard steel is its primary processing target
• [Reliable and Durable]: Our chamfering drills are made of standard M2 high-speed steel with a titanium-plated surface treatment, which improves surface hardness and extends service life. The single-edge design provides ample chip removal space, suitable for fine deburring and producing a smoother cutting surface. The 90° taper fits most flat-head screws for flush mounting. The straight shank connection ensures high concentricity and stable clamping force
• [Package Inclusions]: 1 Pcs x Countersink Drill Bit

[Countersink Drill Bit Size]: Cutting Diameter: 12.4 mm / 0.49 inch; Cutting Length: 10 mm / 0.39 inch; Total Length: 56 mm / 2.2 inch; Shank Diameter: 8 mm / 0.31 inch [Straightforward Installation/Usage]: Secure the workpiece firmly, align the bit tip to the pre-machined center point, and mount the round shank tightly on the bench drill. Hold the tool at 90 Degree to the vertical and apply slow, steady pressure for expanding, chamfering & deburring. Maintain continuous cooling during processing; lift the spindle smoothly once the target hole size is reached. Cool stainless steel; slow RPM for big bits; hand drill only for soft stock . [Broad Application]: This countersink drill bit is for hole chamfering, deburring, and countersinking to make screw caps sit flush. Suitable for 304 stainless steel, cast iron, carbon steel, aluminum alloy, copper plate, acrylic, plastic, and wood; great for woodworking and DIY projects. Hard steel is its primary processing target. [Reliable and Durable]: Our chamfering drills are made of standard M2 high-speed steel with a titanium-plated surface treatment, which improves surface hardness and extends service life. The single-edge design provides

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