Drill bit set Irwin 10502241 — 10-piece set, 1 mm diameter bits

Irwin 10502241 is a 10-piece drill bit set with 1 mm diameter bits designed for precision drilling tasks. The bits are precision ground to DIN 338 standards, feature a universal 118° point angle and a ground flute for accurate cutting and fast chip removal. Each bit has a cylindrical shank and a length of 34 mm, supplied in a Quadro Pack for organized storage and quick selection. The set is suitable for use with hand-held and bench drills and is intended for operations where small-diameter, consistent holes are required.

Advantages

The set offers multiple identical 1 mm bits to ensure continuity of work without repeated sharpening or tool changes. Precision ground cutting edges provide fast drilling and a smooth finish, while the ground flute design improves chip evacuation and reduces clogging. Manufactured to DIN 338 standards, the bits deliver consistent geometry and reliability. The universal 118° point shape enables effective starting and controlled drilling in a variety of materials, and the cylindrical shank ensures compatibility with standard drill chucks.

Suitable for

• Fine electronics drilling and PCB work
• Model making and hobby projects requiring small, accurate holes
• Delicate woodworking and trim work
• Light metal and plastic drilling where 1 mm holes are needed

Key specifications

• Set composition: 10 identical drill bits
• Drill bit diameter: 1 mm
• Overall length: 34 mm
• Point angle: 118° universal point
• Shank type: cylindrical shank
• Manufacturing standard: ground to DIN 338
• Flute: ground flute for fast chip removal
• Typical suitable materials: plastic, soft metal, wood

How to use

Select an appropriate drill speed and secure the workpiece before drilling. Fit a 1 mm bit into the drill chuck, ensure it is clamped centrally in the chuck to avoid runout, and set the drill to a steady, appropriate RPM for the material: lower speeds for metals and higher speeds for plastics and wood. Use light, consistent feed pressure to avoid bit breakage, especially with small-diameter bits. Clear chips periodically to maintain cutting efficiency and allow the bit to cool. Replace the bit from the Quadro Pack when worn or damaged.

Usage recommendations

For best results, use appropriate cutting fluid or lubricant when drilling soft metals, maintain controlled drill speed and feed to prevent overheating or breakage, and handle 1 mm bits with care due to their small diameter. Store bits in their Quadro Pack to protect edges and maintain organization.