The IRWIN 88886 Speedbor Blue Groove Spade Bit Set (6pc) is forged in one piece from Irwin's own special grade tool steel and heat-treated full length for extra overall strength

Micro-groove point and cutting edges have extended spurs for faster, cleaner boring action; bores two times faster, lasts three times longer.

Features

• Blue-Groove point and cutting edge for faster chip removal - 4x faster than standard spade bits
• Double cutting spurs scribe the outside of the hole reducing breakout
• 10% larger shank for added durability
• Grooved hex shank prevents slipping in drill chuck or bit extension
• Fits all standard quick change chucks

Includes

• (1) Speedbor 3/8in x 6in Standard Length Spade Bit
• (1) Speedbor 1/2in x 6in Standard Length Spade Bit
• (1) Speedbor 5/8in x 6in Standard Length Spade Bit
• (1) Speedbor 3/4in x 6in Standard Length Spade Bit
• (1) Speedbor 7/8in x 6in Standard Length Spade Bit
• (1) Speedbor 1in x 6in Standard Length Spade Bit

Specifications

• Diameter: 3/8, 1/2, 5/8, 3/4, 7/8, 1in
• Shank Length: 6in
• Shank Size: 1/4in