Drill bit set Proline 10866 — 2 pieces, length 30 mm, thread size M8

Proline 10866 is a set of two drill bits, each 30 mm long, designed to produce holes suitable for M8 threaded fasteners. The compact length and matching diameter make this pair useful when short, accurate holes are needed in assembly or repair work. These bits are intended for general-purpose use in metal, wood and composite materials where the combination of a 30 mm drill depth and compatibility with M8 threading is required.

Advantages

The set contains two identical bits, offering a convenient spare or replacement for continuous work. The short 30 mm length reduces flex and improves control when drilling shallow holes, and the bits’ geometry supports precise entry and consistent hole diameter. Their compatibility with M8 thread applications ensures correct fit for bolts and nuts sized for that thread dimension.

Suitable for

• Creating shallow holes for M8 fasteners in metal structures
• Drilling short, precise holes in wood for furniture assembly
• Working with composite panels where limited drill depth is required

Key specifications

• Quantity: 2 pieces
• Length: 30 mm
• Intended thread size compatibility: M8
• Suitable materials: metal, wood, composite materials

How to use

Select the appropriate drill holder or chuck and secure the bit firmly before operation. Mark the drilling position and use a centre punch on metal if necessary to prevent wandering. Start drilling at low speed to establish the hole, then increase speed as appropriate for the material while maintaining steady pressure. Stop when the required 30 mm depth is reached and withdraw the bit carefully to clear chips. Replace the bit with the spare when wear affects performance.

Usage recommendations

Use cutting fluid when drilling metals to extend bit life and reduce heat. For wood and composites, ensure proper clamping of the workpiece and adjust drill speed to avoid splintering. Inspect bits regularly for wear and replace both pieces if cutting edges become rounded or damaged.