Spiral drill bit Proline Urbis 20 x 230 mm, straight shank for metal and wood drilling

Spiral drill bit Proline Urbis 20 x 230 mm with a threaded helical flute designed for drilling softwood, hardwood and glued workpieces. The bit features a straight (hexagonal) shank for secure fitting in chucks and holders and a length suitable for deeper holes in woodworking and joinery tasks.

Advantages

The spiral, threaded cutting edge provides efficient material removal and improved centring when starting holes. The 20 mm cutting diameter and 230 mm overall length allow drilling through thick boards or laminates. The hexagonal straight shank ensures stable clamping and reduces slippage in power drills and holders.

Suitable for

• Drilling holes in softwood and coniferous timber
• Boring through hardwood and dense wood panels
• Making deep holes in glued or laminated workpieces
• Use with handheld drills and drill presses that accept straight/hex shanks

Key specifications

• Brand: Proline
• Model / MPN: 5268204
• EAN: 5903755268204
• Diameter: 20 mm
• Overall length: 230 mm
• Shank: straight hexagonal
• Intended materials: softwood, hardwood, glued/laminated wood

How to use

Mark the drilling position and secure the workpiece to prevent movement. Fit the spiral drill bit into the drill chuck or holder and clamp the hexagonal shank firmly. Start drilling at low speed to allow the threaded tip to engage and centre the bit, then increase speed as appropriate for the wood type. Apply steady, even pressure and clear chips periodically to avoid clogging the flute. Withdraw the bit occasionally when drilling deep holes to remove debris and reduce heat buildup.

Usage recommendations

Use appropriate personal protective equipment, clamp workpieces securely, and select drill speeds suitable for the wood species—lower speeds for hardwoods and higher speeds for softwoods. Avoid excessive side load to preserve cutting edge life.