Twist drill bit Bosch 2 608 585 839 1.5 mm

The Bosch 2 608 585 839 twist drill bit with a 1.5 mm diameter is a precision metal-cutting accessory intended for fine drilling tasks. Packaged in a blister, this straight-shank drill bit is designed to deliver accurate, clean holes in thin materials and small-scale projects where a small-diameter cutter is required. The geometry of the cutting edges and the overall length support controlled penetration and reduced walking at the start of the hole.

Advantages

This 1.5 mm twist drill bit provides tight tolerance drilling with reliable concentricity and consistent hole quality. The solid construction ensures durability in light-to-moderate use, while the standard straight shank fits most handheld drills and micro-drill chucks. The blister packaging keeps the bit protected and visible for easy selection and storage.

Suitable for

• Drilling small diameter holes in metal sheets and thin plates
• Precision work on hobby and model-making projects
• Electronics and PCB pilot holes where small-clearance drilling is required
• Wood and plastic where fine, clean holes are needed

Key specifications

• Type: Straight-shank twist drill bit
• Diameter: 1.5 mm
• Material: high-speed steel (HSS) suitable for general-purpose drilling
• Shank style: round/straight for standard chucks
• Package: blister pack for single-bit protection and visibility

How to use

Secure the drill bit firmly in the drill chuck, ensuring minimal runout before starting. Mark the drilling position and, when working on metal, use a center punch to prevent the bit from wandering. Apply steady feed pressure and use an appropriate low-to-moderate speed for a 1.5 mm HSS bit; higher speeds may be used for softer materials like wood or plastic. Use cutting lubricant when drilling metals to extend bit life and improve hole finish. Withdraw the bit occasionally to clear chips when drilling deeper holes.

Usage recommendations

For best results, select drill speeds and feed rates matched to the work material: lower speeds and cutting fluid for steel, medium speeds for softer metals, and higher speeds for plastics and wood. Store the bit in its blister to protect the cutting edges when not in use.