If you want one drill bit set that covers the most-used fractional sizes without constant guesswork, the COMOWARE 29-Piece set is built around practical range and durability. It includes bits from 1/16" to 1/2" in 1/64" increments, so you can step up in size cleanly for pilot holes, tap prep, or hardware fit-ups.
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These bits are made from high-speed steel with 5% cobalt (M35) and use a 135° split-point tip designed to self-center and start quickly with less walking. The spiral flute design helps clear chips as you drill, and the included holder with size index keeps everything organized and easy to grab.
M35 cobalt HSS construction (5% cobalt) for improved wear, heat, and abrasion resistance
29-piece range from 1/16" to 1/2" in 1/64" increments
135° split-point tips for fast, self-centering starts with minimal pressure
Spiral flute design helps clear metal shavings efficiently
Includes indexed drill bit holder for storage and quick size selection
Designed for a wide mix of materials—stainless steel, copper, cast iron, aluminum alloy, plastic, and wood—this set is also built with multiple shank styles to reduce slippage across the size range: round (1/16"–11/64"), triple-flat (3/16"–3/8"), and reduced 3/8" plus triple-flat (25/64"–1/2"). If you regularly drill metal and want organized sizing with a secure grip in the chuck, this kit is a strong all-around pick.
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