The Irwin Instubby Set includes 16,18,20,22,25mm "Stubby" 6X Wood Bits and an Extension bar set.
Patented design gives 6x faster holes in wood than traditional flatbits
Stubby size gives access in restricted areas
Cutting Spurs give a fast clean cut with minimal "breakout"
Full Screw Tip for ease of use and pull through - less manual effort required to drive the bit.
Tapered Tri Flute - Less binding and fast chip removal.
Fully Heat Treated - Full long life and durability.