MJ
21st May 2000, 09:09 PM
I recently bought a Bonham scroll chuck, and I am wondering if any one else has had the same problems I've had.
Apart from the standard expanding/contracting dovetail jaws the chuck comes with a set of vesatile jaw plates which can be interchanged with the docetail jaws. Both sets of jaws are held to the jaw slides by two countersunk hex hed screws.
I have now tried to change the jaws twice, and on both occasions I have found that at least some of the screws have become so tight they are impossible to remove with the allen key supplied. On both occasions I stripped one of the screws, necessitating drillig out and replacing.
I'm wondering whether the design of the chuck is such that the use of it causes the screws to tighten. Has anyone else had the same problem. It also seems to me that stainless or HSS screws would be a far better fitting, and far less likely to strip than the mild steel ones supplied. Given the price of the chuck I'm inclined to think that this is a penny pinching measure by Bonham.
Anyone else with a similar experience with the Bonham, or is it just me?
Regards
Mark Jackson
Brisbane
Apart from the standard expanding/contracting dovetail jaws the chuck comes with a set of vesatile jaw plates which can be interchanged with the docetail jaws. Both sets of jaws are held to the jaw slides by two countersunk hex hed screws.
I have now tried to change the jaws twice, and on both occasions I have found that at least some of the screws have become so tight they are impossible to remove with the allen key supplied. On both occasions I stripped one of the screws, necessitating drillig out and replacing.
I'm wondering whether the design of the chuck is such that the use of it causes the screws to tighten. Has anyone else had the same problem. It also seems to me that stainless or HSS screws would be a far better fitting, and far less likely to strip than the mild steel ones supplied. Given the price of the chuck I'm inclined to think that this is a penny pinching measure by Bonham.
Anyone else with a similar experience with the Bonham, or is it just me?
Regards
Mark Jackson
Brisbane