Irwin’s New SPEEDBOR Blue-Groove Spade Bits
By Chuck Cage
Irwin claims their new Blue-Groove point and cutting edge promotes faster chip removal: 4x faster than standard spade bits. Other features include:
- double cutting spurs to scribe the outside of the hole, reducing breakout
- a 10% larger shank for added durability
- grooved hex shank to prevent slipping in drill chuck or bit extension
Irwin says it’ll fit all standard quick change chucks, and they come in short, standard, and extra-long lengths.
Irwin’s SPEEDBOR Spade Bit Product Line [Irwin]
September 28th, 2007 at 12:42 pm
[…] Last year we covered Irwin’s release of their (then-)new spade bit, the SPEEDBOR Blue-Groove, which claimed to drill four times faster than a standard spade bit. But it looked pretty much like a regular spade bit. Now Irwin’s bringing a new design to the game — something that looks more revolutionary: basically, Irwin took the best elements of the spade bit, brad point bit, forstner bit, and auger bit slammed them all together to create the new SpeedBor Max. […]