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Bosch SB5006P Rapid Feed 6 Piece 3/8-Inch to 1-Inch Spade Drill Bit Assortment with Nylon Storage Pouch | List Price: $21.82
Discount Price: $16.35
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Brand: Bosch
Binding: Tools & Hardware
Features: - Set Includes 1", 7/8", 3/4", 5/8", 1/2" & 3/8" Sizes
- Cutting spurs on the edge of the bit score the outer edge of the hole before the cutting edge removes the material.
- Great for plumbers, electricians and HVAC contractors. Use in materials including hardwoods, composites, treated lumber, railroad ties and other wood products
- All 6? spade bits have 1/4? hex shank
- RapidFeed bits leave cleaner, smoother hole with reduced splintering and less breakout at the back of the material
Bosch Rapid Feed Bit Set [Posted on 2006-08-10]
Excellent butterfly set, bored thru wood easily, bits showed no wear after use. Bosch was an excellent choice, case makes it easy to store bits, and not fumble to find them later. Sizes are great for boring smaller holes for feeding wires thru studs, when rewiring.
Nice quality product but powerful tools are needed for acceptable results. [Posted on 2006-08-31]
I purchased the 13 piece set of Bosch RapidFeed Bits from a local industrial supply company. It is very similar to the 6 piece set except it has wider selection of bits and larger sizes. The storage case is high quality with a velcro closure.
The bits are touted to be 3X faster than conventional bits. I cannot confirm or deny this claim but they did cut quickly under specific conditions. Using the 1" size on 2x10 joists, I found that two things needed to be true to get quick and/or remotely effective drilling:
1. The bit's screw tip should pull the bit through the entire workpiece in one continuous motion.
2. A drill far more powerful than a homeowner's-grade 14.4V cordless drill must be used.
Using a potent 8 Amp, 120 VAC drill and firm pressure the bit performed well. If the screw tip did not pull the bit through the entire workpiece in one continuous motion and "spun" or stalled part-way through, the screw tip would pack with sawdust and essentially stop all cutting. Before clearing the sawdust the bit was noticeably less effective at drilling than cheap, regular spade bits. After manually clearing the sawdust the bit would resume aggressive cutting with firm pressure.
Using a 14.4V Cordless drill the bit would begin to pull in to the workpiece but quickly stalled at a shallow depth. The drill's motor lacked the power to cut as fast as the screw tip pulled the bit into the workpiece.
I believe these bits are a nice product but seem to be designed for tougher applications and work far better with more powerful tools.
If you do a lot of drilling [Posted on 2007-02-11]
An excellent drill bit especially in locations where constant pressure can not be maintained (overhead and reaching out). Stalls once the self feed portion punches through joist or stud. Needs high torque drill to work effectively but shaft bends easily if paddles bind or excessive/off center pressure is applied. Have had the self feed pilot break off in denser woods. Definately drills quicker than a standard spade bit. Higher priced for a disposable bit but a real nice pouch.
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