Bi-metal Hole Saw and Drill

[mcgriffo]

Can anyone recommend a good quality bi-metal holesaw and drill for making the tubing holes in my aluminium case?

 

[DaveMac]

Starrett or Record are brands I would recommend, though aluminium is more forgiving than steel you could probably get away with cheap generic steel instead of bi-metal ones if it's for a one-off.

 

[mcgriffo]

Can you just get any handheld or is it only a certain type that hold a holesaw?

And, for that matter, can you just get any holesaw? (obviously, with the correct diameter for the task)

 

[DaveMac]

A drill with 1/2" or 13mm capacity chuck will cope.

Something like this will do the job on the cheap:

http://www.machinemart.co.uk/shop/product/details/chd820-820w-hammer-drill-230v

http://www.machinemart.co.uk/shop/p...le-saws-augers-forstner-bit-sets/brand/clarke

Or if you want to buy individual better quality holesaw you'll need the holesaw, arbor and pilot drill such as :

http://www.tooled-up.com/Product.asp?PID=10908&MAN=Starrett-Sh2532-Hss-Bi-Metal-Holesaw-20mm

http://www.tooled-up.com/ManProduct.asp?PID=10976&MAN=Starrett-Ka4-Arbor-Visually-Packed

 

[mcgriffo]

Thanks very much Dave - you've been a big help

 

[sonyaddict]

G-Clamp a piece or block of wood to the other side if you can.

This will stop the centre pilot drill from going off centre...while the bore cutter works its magic.


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