Drill bit set AWTools AW40999 — 3 pieces, pack weight 475 g

AWTools AW40999 drill bit set contains three high-speed steel bits with titanium nitride (TiN) coating, supplied in a wooden case. The set is intended for general drilling tasks and light construction or DIY work, offering a combination of durability and reduced friction for use with compatible drills. Laser-engraved size marks on each bit help monitor hole diameter during operation, while the TiN coating extends tool life and improves cutting performance on a range of sheet materials.

Advantages

The HSS construction ensures heat resistance and cutting stability, and the titanium nitride coating provides lower friction and reduced wear compared with uncoated bits. Laser-engraved size markings give clear, permanent identification of each drill diameter for accurate drilling. Supplied in a wooden case, the set is compact and ready for storage or transport.

Suitable for

• Drilling in plastic components and housings
• Working with aluminium and copper sheets
• Drilling stainless steel and other sheet metals (light to moderate thickness)
• General maintenance, repair and DIY projects

Key specifications

• Material: high-speed steel (HSS)
• Coating: titanium nitride (TiN) for reduced friction
• Number of pieces: 3 bits per set
• Case: wooden storage case included
• Markings: laser-engraved size markings on each bit
• Pack weight (approx.): 475 g

How to use

Select a drill compatible with the bit shank and tighten the bit securely in the chuck. Begin drilling at low speed to create a pilot and then increase speed appropriate to the material being drilled. Apply steady, moderate pressure and allow the bit to cut without forcing; use cutting fluid or lubricant when drilling stainless steel or other tougher metals to reduce heat and prolong bit life. After use, clean chips from the flutes and store the bits in the wooden case to protect the TiN coating.

Usage recommendations

For best results, match drill speed and feed to the material: lower speeds for stainless steel and harder metals, higher speeds for plastics and non-ferrous metals. Use light cutting oil on metal to reduce heat buildup and improve hole quality. Inspect laser markings before each use to confirm diameter and replace bits when wear affects drilling accuracy.