Drill bit set Proline 10843, 2 pcs, length 75 mm, for M8 threads

Proline 10843 is a set of two drill bits, each 75 mm long, designed to create holes sized for M8-threaded fasteners. The bits deliver consistent hole depth and diameter suitable for tapping or for through-fastening operations. They are compatible with common handheld drills and drill presses and can be used in metalworking, woodworking and general assembly tasks where precise M8 thread preparation is required.

Advantages

The set contains two identical 75 mm drill bits that ensure repeatable hole depth and size when preparing for M8 threads. Their geometry is suited to create clean entry holes that facilitate tapping or installation of M8 fasteners. Compatibility with both handheld drills and drill presses provides flexibility across work environments. The compact set is convenient to store and carry to job sites.

Suitable for

• Preparing holes for M8 threaded fasteners in metal
• Drilling entry holes for M8 taps in wood and softer materials
• Through-holes for M8 bolts in assembly and repair work
• Use with handheld drills and drill presses in workshops or on-site

Key specifications

• Quantity: 2 drill bits
• Overall length: 75 mm
• Intended thread size: M8 (hole size prepared for M8 fastening)
• Application materials: metal, wood, general assembly materials
• Compatibility: suitable for handheld drills and drill presses

How to use

Mark the drilling point and secure the workpiece to prevent movement. Select an appropriate drill speed and feed rate for the material. Fit a drill chuck to accept the bit shank, clamp the bit securely, and drill perpendicular to the surface to the required depth. If preparing for tapping, use coolant or cutting fluid for metal cutting and clear chips frequently. For through-holes, verify alignment on both sides before final drilling.

Usage recommendations

Use appropriate personal protective equipment, clamp workpieces firmly, and match drill speed to the material to extend bit life. For metal applications, apply cutting fluid and peck-drill when necessary to avoid chip clogging. Inspect bits before use for damage and replace if worn or chipped to maintain hole quality for M8 fastener installation.