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Step Drill Bit #4 Single-Fluted
Features
- Works in most metals (steel, brass, aluminum, copper) as well as plastic and wood.
- Single-fluted design eliminates skidding and makes for easier resharpening.
- Drill multiple-size holes in thin sections of metal, plastic and wood using a single bit.
- Laser-etched hole size are easy-to-read and permanent.
- Anti-skid tip eliminates the need for center punching or pilot hole drilling for most sizes.
Manufacturer Resources
Product Specs
- Department:
- Electrical
- Product Group:
- Hand Tools
- Product Subgroup:
- Screwdrivers & Drivers
- Product Type:
- Drill Bit
Klein Tools 59004 – Frequently Asked Questions
1) What materials can the Klein Tools 59004 step drill bit cut?
The 59004 works in most metals, including steel, brass, aluminum and copper, and it also cuts plastic and wood. It is built for thin sections of material, so think sheet metal, enclosure walls, panel boxes and junction box knockouts rather than thick plate.
2) Do I need to center punch or drill a pilot hole before using this Klein step bit?
For most sizes, no. The 59004 has an anti-skid tip that removes the need for center punching or pilot hole drilling, and the single-fluted design keeps the bit from skidding across the surface when you start the cut.
3) Can one step bit drill several different hole sizes, or do I need a whole index?
One bit covers the range. The 59004 steps up through multiple hole sizes in a single tool, so an electrician punching different conduit and connector sizes in a panel does not have to swap bits. Each step is laser etched with its size, and because it is etched rather than printed the marking will not wear off in the pouch.
4) Is a step bit the right tool for drilling thick steel plate?
No. The Klein 59004 is made for thin sections of metal, plastic and wood. In thick stock the steps cannot clear the material and you will bind the bit. For plate you want a twist bit, an annular cutter or a hole saw instead. Step bits earn their keep in sheet metal enclosures, panel covers, device boxes and plastic housings.
5) What is the difference between a single-fluted and a double-fluted step drill bit?
A single flute, like the one on the Klein 59004, gives you one cutting edge per step. That keeps it from skidding at the start of the hole and makes the bit far simpler to resharpen when the edges dull. Double-fluted bits cut with two edges and clear chips from both sides, which some people prefer for speed, but they are harder to bring back with a sharpening stone. If you run a lot of holes and want to maintain the bit yourself, single flute is the practical choice.
6) What is the Klein part number for the #4 single-fluted step drill bit?
It is Klein Tools 59004. The #4 designation refers to the step size range in Klein's numbering, and the manufacturer part number is the same 59004 you would order by.
7) Will this step bit run in a standard cordless drill?
Yes. The 59004 is a hand-tool drill bit meant for a portable drill or drill driver, and it is most often used freehand for electrical work in sheet metal panels and boxes. Keep the speed down and back off the pressure in metal so the etched steps stay readable and the cutting edge lasts.
How fast can I get the Klein Tools 59004 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools 59004 come with a warranty?
Absolutely. The Klein Tools 59004 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools 59004?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools 59004 from ZenSupply?
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