- 20x faster and 10x more holes per charge than conventional spade bits
- Stinger threaded tip automatically engages the work surface for no-thrust drillling
- 1/4-in impact-rated speed hex won’t slip in the chuck and is ideal for use in quick-change battery-powered impact drivers
- Stinger threaded tip won’t clog or wander, and drills faster than the competition
- 10pc set contains: 1/4, 3/8, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 1-in bits