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Power Tools Direct£14.14Visit shop Reisser Hssgl10set Hss Long Series Drill Set (10Pc) 3.0-10.0Mm (Hanger)
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This 10-piece long series HSS drill bit set from Reisser is designed for professionals and serious DIYers who require extended reach and precision in demanding drilling applications. Engineered to DIN340 standards, these bits excel in materials ranging from stainless steel and mild metal to plastics and wood, offering a clean finish without the need for pre-centring. While the long series construction provides excellent versatility for deep-hole drilling, users should take care to apply steady pressure and proper cooling to prevent potential bit deflection or breakage during high-torque tasks.
| Model Part Number | HSSGL10SET |
|---|---|
| Brand | Reisser |
No, these are HSS (High-Speed Steel) bits designed for metal, wood, and plastic. Using them on masonry or concrete will dull the cutting edges immediately.
No pilot bit is needed because the 118-degree split point tip is designed to self-center and drill directly into the material.
The set contains 10 pieces ranging from 3.0mm to 10.0mm in diameter.
You can use a standard bench grinder or a dedicated drill bit sharpening tool, maintaining the original 118-degree angle and split point geometry.
While they will physically fit into a chuck adapter, HSS bits are designed for rotary drilling. Avoid high-torque impact drilling as it can snap the long shank of the drill bit.
DIN340 is the German industrial standard for long-series twist drills, specifying the dimensions and tolerance requirements for the bits.
Ensure you are using the split point tip correctly by maintaining a steady, perpendicular angle. If the material is extremely hard, check that your drill speed is set to a low, controlled rate.
Reduce your drilling speed and apply a cutting lubricant. Clear the flute of metal shavings more frequently to prevent heat buildup.
Use a light, consistent pressure rather than forceful pushing. Allow the bit to cut the material at its own pace to avoid structural stress on the long shank.
These drill bits are compatible with any standard chuck-style corded or cordless drill. When installing, ensure the bit is securely tightened in the center of the chuck jaws to minimize run-out.
To maintain the longevity of your set:
