Customer Reviews

DELTA 17-908 1/4-Inch Chisel Bit

5 star:		(0)
4 star:		(0)
3 star:		(1)
2 star:		(2)
1 star:		(3)

 

 

This product delivers what it promises consistantly. The only problem with it is that unlike my 5/16" bit set, this bit is easy to snap in hardwoods like maple, even when adjusted to the manufacturers specifications. To compound the problem, it is hard to locate the replacement bits that are advertised on the side of the packaging. I recommend taking time to clear this bit of any debris between every cut to avoid causing the bit from snapping due to clogging between it and the outer chisel.

I ordered this set to replace the one that came with my mortiser. The original had cut probably 80 inches of 1" deep mortises. I expected that because it was "Austrian" that the Quality would be better. NOT! The amount of metal in the bit is roughly 1/3 the metal in the OEM bit. I should have known better,I put it in the Machine and made just two cuts before it snapped. I will be calling Delta in the morning to find out if they have anything available that will match the OEM Ouality. Tool crib customer Service could not tell me.

First unit lasted 10 mortise cuts (3/8" deep)in red oak before bit broke. Unable to find replacement bit, bought second set to finish job. Bit lasted 12 mortises. If it is this fragile, replacements need to be readily available. I am not a rookie. This was not abuse of the tool.

The product appears to be of good quality, but the bit is the weak link. And I haven't been able to find replacement bits. The tool catalogs only list the bit/chisel sets. Where can one buy the replacement bits?

I was making mortises in red oak and the bit broke on the 12th hole. I am not happy with the quality of the bit. Everything else I have that is Delta has has shown itself to be of good quality.

These replacement bit/chisel sets are horribly brittle and the bits snap after a few strokes regardless of how careful you are clearing the chips or feeding at the proper rate.

The bare bits without chisels are listed on the side of the package:
1/4 - 17-916
5/16 - 17-917
3/8 - 17-918
1/2 - 17-919