Drill Bit Set Silver 8 pieces model 10419 — high-speed steel cobalt alloy

Silver drill bit set model 10419 comprises eight cobalt-alloy high-speed steel bits designed for drilling metal and other hard materials. The set provides a selection of popular diameters suitable for handheld and bench drills used in metalworking, maintenance and general workshop tasks. Cobalt-alloy HSS improves heat resistance and wear performance compared with standard HSS, enabling longer life and more consistent drilling when working with stainless steel, cast iron and other tough materials.

Advantages

The cobalt-alloy composition increases red hardness and resistance to softening at elevated temperatures, reducing wear during extended cutting. Precision-ground flutes and point geometry support effective chip evacuation and stable drilling. The set format supplies a range of diameters commonly needed in repair, fabrication and maintenance work, allowing quick selection for different hole sizes without changing brands or drill systems.

Suitable for

• Drilling stainless steel, mild steel and cast iron
• Workshop and maintenance drilling with handheld or bench drills
• Fabrication, repair and installation tasks requiring durable drill bits
• Applications where improved heat resistance and wear life are needed

Key specifications

• Material: cobalt-alloy high-speed steel (HSS-Co)
• Quantity: 8 pieces in the set
• Intended use: metal and hard material drilling
• Compatibility: handheld drills and bench/column drills
• Geometry: precision-ground point and flutes for chip removal

How to use

Select the drill bit diameter appropriate for the hole required and secure the workpiece to prevent movement. Fit the bit into the drill chuck and tighten according to the drill manufacturer's instructions. Use moderate to high spindle speeds for smaller diameters and lower speeds for larger diameters or harder materials. Apply steady, moderate feed pressure; avoid excessive force that can cause bit overheating or breakage. Use cutting fluid or lubricant when drilling stainless steel or other heat-sensitive materials to extend bit life and improve hole quality.

Usage recommendations

For best results when drilling metals such as stainless steel, use cutting lubricant, maintain appropriate drill speeds, and allow the bit to cool between prolonged cuts to preserve hardness and avoid premature wear.