Irwin 10502843 Blue Groove 4X Long Flat Bit 28 x 400mm

The IRWIN Long Series Blue Groove 4X Flat Bit is engineered for efficiency, featuring a patented groove point and cutting edge that cuts timber four times faster than standard flat bits. Its parabolic scoop design enhances control and facilitates wood chip removal. An increased relief angle of 17° (up from 12°) reduces resistance, while a longer, sturdier shank provides durability. The bit has a 28.0 mm diameter and a 400 mm length of shank, combining reach with a robust build for demanding drilling tasks.

Features

• Patented groove point and cutting edge for faster cutting
• Parabolic scoop for better control and chip removal
• Increased relief angle from 12° to 17°
• 400 mm shank length for reach
• Shank diameter 10% larger for durability

Technical specifications

• Drill bit diameter: 28.0 mm
• Length of shank: 400 mm
• Increased relief angle: 17°
• Shank diameter: 10% larger than standard