Evolution Power Tools
Evolution Power Tools SD-11 step drill 1/4 to 1-3/8 inch
A straight-flute step drill that creates holes from 1/4 to 1-3/8 inch in a single pass
- Drills multiple hole sizes with one tool using 11 step increments
- Straight flute design clears chips efficiently for smoother drilling
- Covers 1/4 to 1-3/8 inch range for versatile applications
- Built by Evolution Power Tools for reliable workshop performance
- California Proposition 65 warning indicates chemical safety awareness required
Drilling Range and Purpose
The Evolution Power Tools SD-11 is a straight-flute step drill covering holes from 1/4 inch to 1-3/8 inch. It suits electricians, plumbers and metalworkers who need multiple diameters in a single bit. The tool is not for buyers who require sizes outside this range or a different flute geometry.
Heat and Power in Use
The straight-flute design helps clear chips and reduces heat build-up during normal drilling in sheet metal and plastic. No noise or power-draw figures are supplied by the manufacturer. The bit is not for users who need documented thermal limits or vibration data for precision work.
Construction and Daily Handling
Made by Evolution Power Tools, the bit carries a California Proposition 65 warning for chemicals linked to cancer and reproductive harm. The straight shank fits standard drill chucks without adapters. The tool is not for buyers who need a hex quick-change shank or a coating not mentioned in the specifications.
Highlights
- Drills multiple hole sizes with one tool using 11 step increments
- Straight flute design clears chips efficiently for smoother drilling
- Covers 1/4 to 1-3/8 inch range for versatile applications
- Built by Evolution Power Tools for reliable workshop performance
- California Proposition 65 warning indicates chemical safety awareness required
Specifications
| Brand | EVOLUTION POWER TOOLS |
|---|
Questions about this item
How do I install the Evolution Power Tools SD-11 step drill in my drill chuck without it slipping?
Insert the 1/4 inch shank fully into the chuck and tighten firmly; the straight flute design needs full contact to prevent spin-out when starting holes.
When will the cutting edges on this step drill need replacement under normal use?
The straight flute geometry dulls gradually; expect to replace the bit once the 11 step diameters no longer cut cleanly or produce excessive burr.
What is the first limitation I will hit when drilling multiple thick steel plates in succession?
Heat builds quickly in the straight flute design; the bit loses temper after several deep holes, so pause to cool between cuts.
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