Non per l'uso con punte per legno a cambio rapido.
Brand
Irwin Tools
Item Dimensions LxWxH
15.4 x 9.1 x 0.8 inches
Material
Blend
Shank Type
Straight
Tool Flute Type
Straight
3.5
12 Review
5 Star
68
4 Star
16
3 Star
10
2 Star
0
1 Star
6
Scritto da: bfreidah
Solid
I use this for sanding wheels with a 1/4" shank. As others have mentioned, the 1/4" shank will always be a bit off center causing the shaft to bounce. I have reduced that effect by adding a small section of pvc pipe over the shaft to act as a stabilizing handle. It also provides more down force on the head. The set screws and threads are strong enough to handle the work for a long time.
Scritto da: George
Worked as designed....
I purchased two of these 12" long, 1/4" hex drive extensions to drill through a subfloor & wall sill. I needed to reach through a 18" floor truss space before drilling a hole with a 3/4" spoon bit into the wall cavity. The double hex set screws held the two extensions & drill bit together without any issues. The extensions are made well and should last me forever.
Scritto da: Merle Ebbert
Drilled well.
Had to use about 6. There were 3 fire stops to go through. Last 2 extensions and drill bit did not come out. They were tightened well but spade bit got stuck between the 2nd & 3rd fire stops. Left them in the wall. Oh well.
Scritto da: getterdun
Nice, but not what I wanted
I assumed that the two screws were to tighten a regular drill bit. But, this tool is just for hex drill bits. I don't have many of these so I have yet to use it, and probably won't much in the future. Update 2/16/14: Used this today with a drill bit that fit it and it sure helped. Glad I had this tool available.
Scritto da: zipzipinc
1/4" x 12" bit extension
This is a 1/4" hex x 12" bit extension for that extra reach boring holes through thick wood beams and such. Makes my job as an electrician just a little easier! Just insert your bit and tighten the set screws and your ready to go. It's priced right and works great, if it broke tomorrow I'd order another one from amazon.
Scritto da: Shawn Kram
Best out there
Works great and the screws don't slip on the bit. The extension bit easy follows a 5/8 inch bit through the hole. Great for landscape timbers!
Scritto da: B
Great tool
No problems with this tool, it is what it is. This is good steel with fine milling for the set screws and bit end.
Scritto da: rich2012
speedbor review
This product work great for me. I had a job to bore a hole 9" and the bore I had would only do 6". With this speedbor I complete my task in less than 10 minutes. The double allen screws hold perfect.
Scritto da: Ben Mamos
great
works great
Scritto da: makeyourfaith
The head is hex shape, whereas the description says ...
The head is hex shape, whereas the description says it accepts any wood bit with a round 1/4" shank. It will hold a round bit, but not very tightly. This is really meant for bits with a hex shank.
