TG Taper-Shank Twist Drill Bit, HSS-Co5 M35, Amber Finish, for Stainless Steel, MT1–MT3, 13–30 mm

HSS-Co5 M35 taper-shank twist drill bit with a heat-treated amber finish, 135° point and deep spiral flutes for efficient metal drilling. Available in 13–30 mm cutting diameters with MT1, MT2 and MT3 Morse taper interfaces for compatible stationary machines.

Key Features

• HSS-Co5 M35 cobalt high-speed steel provides high hardness, wear resistance and heat resistance for demanding metal drilling.
• Heat-treated amber finish provides the characteristic bronze-gold appearance and helps protect the drill surface against corrosion.
• 135° point with precision-ground double-relief geometry supports stable positioning and efficient cutting.
• Deep spiral flutes provide effective chip evacuation and help maintain a smooth drilling action.
• Morse taper shanks provide a secure machine interface, with MT1, MT2 and MT3 variants according to drill diameter.

Product Specifications

Available Variants

Applications

• Stainless steel and ordinary steel
• Iron and steel plate
• Mould steel within the recommended hardness range
• Copper and compatible non-ferrous metals
• Titanium alloys when suitable machine parameters and coolant are used

Tool Compatibility

• The 13–14 mm variants require a machine or toolholder with an MT1 Morse taper socket.
• The 15–23 mm variants require a machine or toolholder with an MT2 Morse taper socket.
• The 24–30 mm variants require a machine or toolholder with an MT3 Morse taper socket.
• Suitable for compatible drill presses, radial-arm drilling machines, machining centres and CNC equipment.
• A suitable Morse taper adaptor or reducing sleeve may be used when the machine interface differs from the drill shank.
• Not designed for direct clamping in an ordinary handheld-drill three-jaw chuck.

Operating Guidance

• Supplier guidance recommends approximately 100–800 r/min, with lower speeds used as drill diameter or workpiece hardness increases.
• Use suitable cutting fluid or coolant when drilling stainless steel, titanium alloy and other difficult-to-machine metals.
• Secure the drill and workpiece firmly before machining to minimise vibration and drill-bit damage.
• Confirm the workpiece grade and hardness before use; this drill is not recommended for heat-treated steel above approximately HRC 38.