RUKO LOS-HSSCo-28mm HSS-Co Bi-Metal Hole Saw, 28 mm Diameter, 38 mm Cutting Depth, 8% Cobalt

Drilling large-diameter holes in tough materials like stainless steel or thick mild steel quickly dulls standard hole saws, causing slow progress and frequent tool changes. The RUKO LOS-HSSCo-28mm hole saw solves this with an 8% cobalt HSS-Co bi-metal construction, engineered for high heat resistance and durability in professional and industrial applications.

Who is it for

This hole saw is intended for electricians, plumbers, metalworkers, and maintenance technicians who need to cut precise 28 mm holes in metals, wood, plastics, and plasterboard. It is compatible with standard arbors featuring a 5/8"-18 UNF or M16 thread (arbor not included).

Main features

• M42 HSS-Co teeth with 8% cobalt for excellent heat resistance and long cutting life.
• Bi-metal construction: flexible alloy steel body with hardened cobalt steel cutting edge.
• Variable tooth pitch (4/6 TPI) for smooth cutting and reduced vibration.
• 38 mm cutting depth for through-holes in pipes, panels, and profiles.
• Metallic finish for corrosion resistance.

Specifications

• Diameter: 28 mm
• Cutting depth: 38 mm
• Material: HSS-Co bi-metal (8% cobalt)
• Tooth pitch: variable, 4/6 TPI
• Suitable materials: stainless steel, mild steel, non-ferrous metals, wood, plastics, plasterboard
• Arbor compatibility: 5/8"-18 UNF or M16 thread (arbor sold separately)

Tips

Use a suitable pilot drill and cutting fluid when working with stainless steel to extend tool life. Ensure the arbor is securely tightened before starting the drill.