30-piece all-purpose combination Bi-metal hole saw kit from Henson Tools together the most commonly used hole saw sizes (22 pieces)and the most complete hole saw assembly including 2 Arbors with Pilot Drills,3 Additional Pilot Drills,1 Ejector Spring,1 Arbor Adapter and 1 Allen Key. All these are packed in a well organized and sturdy plastic case for easy storage and portable for all job environments.Tips: DO Operate hole saw at the recommended speed. See RPM table at 6th display pictures. DO Apply sufficient pressure to cause continuous chip formation. DO Set pilot drill far enough (about 1/8") beyond cutting edge of the saw to establish and maintain a solid center. DO Use cutting oil or coolant to assure cleaner, cooler cuts and longer blade life. DO Chuck the hole saw properly. DO Hold the saw perpendicular to the surface of the material being cut. DO Hold the hole saw drive unit firmly. A drill press or lathe is best when possible. DO Be sure that drive pins on pin drive arbors are properly engaged. DO Wear safety glasses and keep idle hands away from the sawing operation. DON'T Run the hole saw too fast. Excessive speed will cause premature wear. DON'T Allow the tooth tips to rub across the surface of the work. Rubbing increases heat dulls teeth, and will work harden some materials. DON'T Operate a hole saw without a pilot drill or with a pilot drill set too shallow. DON'T Operate a hole saw dry (except in cast iron). Dry cuts generate more heat and decrease the life of the hole saw. DON'T Try to saw holes at an angle to the work surface. If the teeth contact the work unevenly, the hole saw will twist off center and break the pilot drill or saw. DON'T Allow the drive pins to become loose and disengage from the hole saw cap. DON'T Let loose clothing or long hair get near a revolving hole saw.
S**L
Initial faulty mandrel replaced promptly by seller.
Raised from one star (larger saws were unusable as the mandrel didn't fit) to three. Seller sent a replacement mandrel quite quickly and it fits.Will return and possibly upgrade my rating after putting these to work.
A**R
Breaks teeth doing anything other than wood
The centering bit in the adapter wobbles, causing it to auger the hole bigger than wanted. The saws themselves are junk, works on wood ok, breaks teeth off going thru thin steel and even aluminum. I've drilled 3 holes and two saws are trashed. Not recommended
Z**N
excellent
I bought this for my warehouse. I'm impressed with the quality of the hole saws, look exactly as advertised, heavy duty, way more hole saws then I thought. Easy to put together and apart, but need to be careful when screwing spring into the pilot drill, better wear your gloves.
C**N
Pilot drills break!
This is a decent set and a little cheaper than the Milwaukee and yet the pilot bits break easily. Emailed sellers and the said that is why they have extra pilot drills. Ok, so I bought a good brand of pilot drill.
J**Y
Good
Good
T**G
High quality product!
Heavy duty. Worked extremely well cutting through the sheet metal on my truck. One of the few reasonably priced hole saw kits that has metal drilling capabilities. Recommended.
B**N
Overpriced junk
Saws are not straight, they wobble making it impossible to make straight cuts. Also, very thin wall construction makes them undesirable for much else besides soft wood.
H**D
junk
hole saws wont even cut threw 28 gauge metal roofing very disapointed in product for the price are going to go buy a lennox set.
Trustpilot
1 day ago
1 month ago
