The Oops hole enlargement arbor from Starrett allows you to use two hole saws from one arbor. You can use the smaller hole saw as a type of pilot drill by lining it up into existing holes. The overlapping larger hole saw then creates a larger hole. This can be shown in the video at the bottom of the page.
- For use in conjunction with either the A1, A2 or A10 arbor by replacing the pilot drill with the A19 'Oops' arbor.
- Compatible with the following hole saws which have the same screw threads (1/2”-20 & 5/8”-18):
(FCH) Constant Pitch HSS Bi Metal Hole saws
(DCH) Dual Pitch HSS Bi Metal Hole saws
(MPH) TCT Multi Purpose Hole saws
(CTD) Carbide Tipped Hole saws
(D) Diamond Grit Holes aws
- Product code: A19
- Manufacturer: Starrett
unable to use the product, because of 2 different thread sizes on it.
Excellent product makes enlarging existing downlight holes really easy
Not used yet but looks good quality.