Rank: Forum user
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Hi all,
I'm looking for some advice regarding pedestal drills (and other rotating tools) and the wearing (or not wearing) of gloves.
Around 4 years ago, before I joined the company, an employee was seriously injured while using a pedestal drill, the injury resulted in the amputation of his thumb. He was wearing a welding gauntlet at the time, not using a vice grip and was attempting to drill 6 or 7 layered components to save time (stacked like playing cards). There was also an allegation that he had removed the guard to enable him to drill of 7 components at once - saving him time.
In an effort to control the risk the previous H&S Manager introduced a 'no gloves' policy when drilling. I don't entirely agree with his policy - I do think the choice of glove was not correct but do think there are occasions when gloves could and should be worn.
More recently, we have been experiencing an increase in the number of hand injuries from handling components being drilled, predominently due to sharp corners.
I would be interested to get other peoples opinion on the wearing of tight fitting elasticated cut-resistant gloves when operating rotating tools, and specifically the pedestal type drills in question. The gloves in question are not loose and are unlikely to present any increased risk should your hand get caught by a rotating part of the drill (the aim being, to use other controls to prevent your hand getting close to any rotating parts in the first place!)
What are others thoughts?
Thanks in advance.
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Rank: Super forum user
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All our ops wear gloves as you describe - they use air driven palm sanders and small angle grinders for finishing of panels etc -although I accept that they are rotary tools they not pedestal type drills (which it sounds like you have) so the risk of entanglement is significantly lower.
As an apprentice many years ago I was always taught no gloves on drills and lathes.
Stuart
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Rank: Super forum user
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I also was taught as an apprentice not to use gloves when using lathes, pillar drills etc. I was also taught to de-burr metal after I cut it. Times change, cost cutting etc things are not done the same. (nearly said cutting corners, but if they did your problem would be solved).
I would not want people to use gloves, but you could help minimise injury with a trip device for the drill. Looks like an old fashioned car telescopic aerial, pointing down by the drill bit. It will not prevent entanglement, but should cut out the machine to minimise any injury.
Chris
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Rank: Super forum user
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Forgot to say, sounds like you need a jig to hold the metal. Are they currently holding it in their gloved hand to stop it rotating?
Chris
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Rank: Super forum user
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So the workpiece/s, and the machine, are stringently clean and without sharp edges then ?
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Rank: Super forum user
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Are you drilling dry or using a metalworking fluid. If the latter then the type of glove you mentioned would not be suitable as it would absorb the metalworking fluid and hold this in contact with the skin. The result would be irritant damage to the skin with the potential for dermatitis.
Chris
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Rank: Forum user
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Sounds like you need to look at the engineering controls first, as Chris42 rightly points out perhaps you could consider a quick release jig of some type, failing this, as the last resort PPE.
May be worthwhile contacting Ansell for some information on who your local rep is. I encountered a similar problem, and we worked in partnership with Ansell, through trial & error to identify suitable hand protection. There are gloves which are cut resistant, but are of asimple enough construction to separate should an entanglement issue occur!
Would consider this as a first step, to contact Ansell, or any other glove manufacturer, they will want to help and advise you!
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Rank: Super forum user
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We have an absolute "no gloves with rotating machinery" policy. I have heard of too many digits being twisted off because of the use of gloves while doing so and the glove gets caught. However, these are gloves and can be put on and taken off very easily so I would suggest that they put them on to handle the components and take them off to drill. It takes a little longer but is by far the safest option. If you are holding the workpiece while drilling then Chris42 is spot on that a jig/fixture is required to hold/clamp the workpiece in place. Not only does this give greater precision as you know that the workpiece is in exactly the right place 100 times out of 100, but it reduces any risk of cuts and lacerations from swarf and metal chips.
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Rank: Forum user
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Thanks to everyone who has replied so far.
We use jig, vice clamps etc, where possible, but this workpiece was large which made it difficult to secure in place.
The edges are all buffed but as chris42 indicates - I can't cut the corners (nice one Chris).
Chris P - we sometimes use metalworking fluid but not always. The operators wasnt using it on this occasion. The cut resistant gloves have a nitrile coating over the palm and underside of fingers, with the entire top 1/3 of the finger coated in nitrile. This offers significant coverage but not sure of the breakthrough time. I will contact the supplier about this.
I'm getting the impression views are mostly against the wearing of gloves while operating this type of tool.
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Rank: Super forum user
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The latest issue of RoSPA Safety Express reports a successful prosecution by the HSE under PUWER 1(1) in a case involving a welder losing his finger as the result of wearing welding gloves while using an unguarded pedestal drill. Crocker Bros Ltd pleased guilty and fined £10 000 + £4076 costs.
The HSE inspector said that thee should have been a chuck guard fitted and prevented the use of welding gloves while operating the drill.
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Rank: Forum user
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Yeh, seen that Canopener. I agree with not wearing welding gauntlets..........too lose, bulky and big, and was a contributory factor in the accident 4 years ago. However, our 'glove of choice' is a tight fitting glove and you hand should never be near the rotating chuck (with guard fitted).
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Rank: Super forum user
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If you are providing gloves as protection against cuts and other physical hazards, then a coating on the outside of the glove should not be considered as offering protection against chemicals. There are several reasons for this, but the main two are:-
1. Any exposure to physical hazards will quickly render the coating on the outside of the glove ineffective due to the physical damage.
2. An impervious coating on a material glove is always suspect, due to the probability that fibres from the material will penetrate into the coating, thus rendering this largely ineffective from the outset, since the permeation distance can be minimal. The so-called 'cotton lined rubber/plastic glove' is usually really a 'rubber/plastic coated cotton glove' and any permeation breakthrough time should be treated with extreme caution. In one investigation where the gloves did not produce the expected result, examination of brand new gloves of this type with a pocket microscope showed fibres actually penetrating through the surface. Note also that once the chemical has reached the material on the inside it will eventually saturate this ensuring maximum skin exposure, not protection.
Chris
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Rank: Super forum user
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There was this one too.
http://www.bbc.co.uk/new...land-merseyside-14020648
Gloves and pillar drills - No, unless there are VERY good reasons to accept introducing greater risk of entanglement.
Incidentally the trip device that Chris mentions should have DC injection braking.
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Rank: Super forum user
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I have to say, I have never worn gloves when operating pedestal drills, lathes, mills or any other workshop machine tools - from basic workshop instruction through trade tests and afterwards. I have seen some places where it is considered normal.
What I would ask regarding your increasing injury rate is what has changed at the tool face? Have you started to use different drills, materials, cutting speeds or production methods. Surely, with the right tools, selected and matched to the job and the raw material, along with a properly designed production plan for the job the need to produce parts with sharp edges and burrs can be reduced SFARP? Has a finance bloke decided that the nice, high speed tools are just too expensive and so the spec has changed for buying but the cutting speeds have remained the same? Just some questions i would look at, to be sure,
Just thinking aloud really
Jim
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