HSS Cobalt Steel Hole Saw Set with 5 Drill Bits: 16 + 18.5 + 20 + 25 + 30 mm HSS Cobalt, M35, HRC 64–66, Stainless Steel

General Description

Professional grade HSS Cobalt Steel Hole Saw, ideal for drilling holes in hard materials such as steel, aluminum and plastic. This set includes 5 drill bits of varying diameters, offering versatility for different DIY and construction projects.

Technical Specifications

• Material: HSS high-speed steel with 5% cobalt
• Working Length: 1.5 cm
• Hole Bit Diameters: 16 mm, 18.5 mm, 20 mm, 25 mm, 30 mm
• Hardness: HRC 64–66
• Tooth Geometry: 4/6 tpi (teeth per inch)

Use

For proper use, position the center drill bit in the correct location and start slowly at a low speed. Hold the drill perpendicular to the workpiece and use cutting oil to improve cutting performance and extend tool life.

Other Information

• Includes an Allen key for tightening
• Cutting performance improved by more than 20%