Our stepped drill bit is a convenient way to make various sized holes without changing drill bits. This HSS titanium coated bit is great for drilling into plastic, steel, copper, wood, aluminum, and many other materials. They are very useful when installing ebb&flow systems or making your own hydroponic drip systems. This unibit step drill has 10 total steps which range from 1/4" Through 1 3/8" .
Great price. I used it immediately on delivery to enlarge a hole in an electrical box. Went smoothly without dulling the bit.
This product is 100% nessary if you use grow trays. I cut my first tray with a drill and a dremel cutting saw... terrible results but worked with excessive silicone. I had to repeat this 3 more times... so I purchased this Unibit Step drill bit and I was able to cut all 3 trays, perfectly, within 5 minutes. It was so easy and took 100% of the stress out. I would recommend to anyone that is looking to drill into trays or buckets!!!