TG Extra-Long Twist Drill Bit, HSS-Co5 M35, 135° Point, for Steel, 1.5–13 mm

Extra-long HSS-Co5 M35 twist drill bit with a 135° point and smooth spiral flutes for deep-hole drilling in compatible metals and other materials. Available in 1.5–13 mm cutting diameters with round shanks for suitable drill chucks.

Key Features

• One-piece HSS-Co5 M35 cobalt high-speed-steel construction provides high hardness, wear resistance and toughness.
• Extra-long design provides additional reach for deep holes and recessed drilling positions.
• 135° point geometry supports stable positioning and efficient material penetration.
• Smooth U-shaped spiral flutes promote effective chip evacuation during deep-hole drilling.
• Round straight shank is compatible with suitable standard drill chucks.

Product Specifications

Available Variants

Applications

• Steel plate and compatible alloy steel
• Cast iron and cast steel
• Mould steel within the recommended hardness range
• Copper, aluminium and compatible non-ferrous metals
• Wood and compatible plastic materials
• Deep holes and difficult-to-reach drilling positions

Tool Compatibility

• Compatible with suitable handheld electric drills, cordless drills and drilling machines fitted with a standard three-jaw chuck.
• The chuck must accept a round shank matching the selected drill diameter.
• The 11–13 mm variants require a chuck with at least the corresponding 11–13 mm capacity.
• Supplier guidance does not recommend low-torque 12 V cordless drills; use equipment with sufficient torque for the selected diameter and material.
• A drill press or other stable stationary machine is recommended for larger diameters and deeper metal holes.

Operating Guidance

• Reduce spindle speed as drill diameter, drilling depth or workpiece hardness increases.
• For larger diameters, the supplier recommends operating below approximately 1,000 r/min.
• Withdraw the drill periodically during deep-hole work to clear accumulated chips.
• Use suitable cutting fluid or coolant when drilling steel and other demanding metals.
• Confirm the workpiece grade and hardness before drilling; the stated application range is for compatible materials up to approximately HRC 38.