Drill bit DeWalt DT5560 Extreme HSS 11.5 mm

DeWalt DT5560 Extreme HSS 11.5 mm drill bit is a high-speed steel cutting tool designed for metalworking and general workshop drilling. The straight-shank 11.5 mm diameter bit fits standard chucks on power drills and drill presses and is intended for producing accurate round holes in various metals and common workshop materials where an HSS bit is required.

Advantages

The HSS construction provides durability and improved heat resistance during sustained drilling operations. Precision ground flutes and a properly formed point help deliver consistent hole quality and reduce walking at the start of the cut. The straight shank ensures secure clamping in standard drill chucks and compatibility with drill presses. The bit is suitable for repeated use in metalworking tasks where an HSS geometry is preferred.

Suitable for

• Drilling holes in mild and alloy steels
• Workshop general-purpose drilling in metal and similar materials
• Use in hand-held power drills and stationary drill presses
• Preparing holes for fasteners, fittings and secondary machining

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 11.5 mm
• Shank type: straight shank for standard chucks
• Primary use: drilling metal and common workshop materials
• Geometry: standard twist drill flute and pointed tip for general-purpose cutting

How to use

Secure the drill bit in the chuck so that the shank is fully engaged and tightened. Select a suitable spindle speed for the material being drilled—lower speeds for harder metals and higher speeds for softer materials—while using appropriate cutting fluid or coolant when drilling metals to extend bit life and manage heat. Begin drilling with steady pressure, allowing the bit to cut without excessive force, and clear chips periodically to prevent clogging of flutes. When finished, withdraw the bit while the spindle is stopped or running slowly to avoid snagging.

Usage recommendations

Use cutting lubricant for most metal drilling applications to reduce heat and improve tool life. For best results, match feed rate and speed to the material and replace the bit when wear or loss of cutting performance is evident.