Drill bit Proline 76170P — metal drill bit Ø17 mm, length 184 mm, 1 pc

Proline 76170P is a single high-speed steel (HSS) drill bit designed for metalworking applications. It has a nominal diameter of 17 mm and an overall length of 184 mm, made to fit standard drill chucks and machines that accept DIN 338-compatible bits. The solid construction and refined HSS material provide wear resistance and cutting performance suitable for drilling holes in steel and other metals. The drill bit is supplied as one piece and packaged in a PVC case for storage and protection.

Advantages

The HSS refined steel composition offers a balance of hardness and toughness for sustained cutting action in metal. Compliance with DIN 338 geometry ensures predictable chip formation and stable machining when used in compatible drills. With a relief length of 13 mm, the bit provides effective chip evacuation while maintaining rigidity along the working length. Supplied in a PVC case, the bit is protected from damage and is easy to store and transport.

Suitable for

• Drilling through mild and alloy steels
• Metal fabrication and custom part production
• Maintenance, repair and overhaul tasks on machinery
• Preparing holes for bolts, rivets and fasteners in metal structures

Key specifications

• Material: refined high-speed steel (HSS)
• Diameter: 17 mm
• Overall length: 184 mm
• Relief (flute) length: 13 mm
• Shank and geometry: DIN 338 compatible
• Packaging: single piece in PVC case

How to use

Install the drill bit into a compatible drill chuck, ensuring secure clamping and correct runout. Select appropriate cutting speed and feed for the metal being drilled; lower speeds are recommended for harder steels and larger diameters. Use cutting fluid or coolant to reduce heat and improve tool life, and apply steady pressure while keeping the drill aligned perpendicular to the work surface. Withdraw periodically to clear chips and prevent clogging along the 13 mm relief length.

Usage recommendations

For best results, match drilling speed and feed to the workpiece material and use suitable cutting lubricant. Inspect the bit for wear before use and replace when tip wear or chipping affects hole quality. Store the drill bit in its PVC case to protect the cutting edges.