Drill bit set Irwin IW3038501 HSS TiS 15 pcs, sizes 1.5–10 mm

Drill bit set Irwin IW3038501 HSS TiS 15 pcs, sizes 1.5–10 mm is a compact collection of high-speed steel (HSS) twist drills with a titanium nitride (TiN/TiS) coating. The set covers metric sizes from 1.5 mm up to 10 mm and is supplied in an organized plastic case for secure storage and quick selection. These bits are intended for general-purpose drilling in metals, wood and plastics; the HSS core gives strength and heat resistance while the TiS coating reduces friction and helps extend cutting life.

Advantages

The HSS material delivers durability and resistance to heat build-up during continuous drilling. The TiS (titanium) coating lowers friction between the cutting edges and the workpiece, improving chip evacuation and increasing wear resistance. The included case keeps all 15 pieces organized and protected, allowing for fast bit selection and safe transport between workshop and jobsite. The metric size range from 1.5 mm to 10 mm provides flexibility for a variety of hole diameters without requiring multiple separate sets.

Suitable for

• Drilling holes in mild and alloy steels using hand-held or bench drills
• Creating pilot holes and clearance holes in wood
• Drilling through plastics and composite panels
• General maintenance, repair and light fabrication tasks

Key specifications

• Material: high-speed steel (HSS) core with titanium nitride / titanium sulfide coating
• Coating type: TiN/TiS for reduced friction and increased wear resistance
• Number of pieces: 15
• Size range: metric 1.5 mm to 10 mm (various increments)
• Packaging: organized plastic case for storage and transport

How to use

Secure the chosen drill bit in the chuck of a drill so that the shank is fully seated and tightened. Select an appropriate spindle speed for the material being drilled (lower speeds for harder metals, higher speeds for wood and plastics). Apply steady, moderate feed pressure and allow the drill to cut without excessive force; use cutting fluid or lubricant when drilling metal to reduce heat and improve tool life. Clear chips periodically to prevent clogging and inspect the bit for wear; replace when cutting performance declines.

Usage recommendations

Use cutting lubricant when drilling metals, start holes with a smaller pilot size for precision, and store bits in the supplied case to protect the TiS coating and maintain bit alignment.