Diablo 3/8 In. x 18 In. Hole Saw Mandrel Extension for Snap-Lock Plus Health & Safety Supplies It is only for copper

It is only for copper base metals as an effective economical alternative to copper-silver alloy rods

The Plug Jack gives access lower into the cut for thick material and higher towards the teeth for thin material

TH393 series inswing hardwood adjustable sill

metal to concrete

Diablo 3/8 In. x 18 In. Hole Saw Mandrel Extension for Snap-Lock Plus Health & Safety Supplies It is only for copperDiablos Universal Extensions provide access in hard to reach areas by extending the length of your power tool accessory. No tools are required with this extension in order to attach accessories; the quick change feature allows users to switch between accessories with no down time. These extensions are ideal for use with Diablo's Snap Lock Plus Hole Saw Mandrel.