Drill bit Dedra WIT04886 — 4.8 mm diameter, 86 mm length, for metal, 1 pc

Single Dedra WIT04886 drill bit with 4.8 mm diameter and 86 mm overall length, designed for drilling metal. The solid-design twist bit is intended to produce accurate pilot and clearance holes in sheet and solid metal workpieces. Supplied as one piece, this drill bit fits standard chucks and is suitable for workshop, repair and metalworking tasks that require a medium-small diameter hole.

Advantages

The Dedra WIT04886 drill bit combines a 4.8 mm cutting diameter with an 86 mm overall length to reach through thin to moderate metal sections. Its solid twist design ensures concentricity and hole accuracy, while the metal-specific geometry optimizes chip evacuation and cutting action on ferrous and non-ferrous metals. Supplied as a single piece, it is convenient for targeted repairs or production runs where a precise, repeatable hole size is required.

Suitable for

• Drilling pilot holes in sheet metal and structural metal parts
• Creating clearance holes for bolts, rivets and fasteners
• Workshop repairs and maintenance on machinery and metal assemblies
• Small-scale metal fabrication and fitting tasks

Key specifications

• Cutting diameter: 4.8 mm
• Overall length: 86 mm
• Design: solid twist drill geometry for metal
• Material compatibility: sheet and solid metal workpieces (ferrous and non-ferrous)
• Package contents: single drill bit

How to use

Secure the Dedra 4.8 mm drill bit in a compatible drill chuck, ensuring it is tightened and concentric. Select an appropriate rotational speed and feed rate for the metal type being drilled; lower speeds for hard steels and higher speeds for softer non-ferrous metals. Use cutting fluid or coolant when drilling thicker or harder metals to improve chip evacuation and prolong tool life. Start with a steady, controlled feed to establish the hole and maintain alignment throughout the operation.

Usage recommendations

For best results, pre-mark the drilling position and, where appropriate, use a center punch to prevent wander. Match drill speed and lubrication to the metal: use reduced speed and cutting fluid for hardened steels, and higher speed for aluminium and softer alloys. Replace the bit when wear degrades hole quality to maintain accurate and safe drilling performance.