Review on 6 Piece Hymnorq HSS Metric Combination Drill And Tap Bit Set With Spiral Flute And 1/4” Hex Shank, Ranging From M3-M10 - High Speed Steel For Enhanced Performance by Meech Elliott

Name: 6 Piece Hymnorq HSS Metric Combination Drill And Tap Bit Set With Spiral Flute And 1/4” Hex Shank, Ranging From M3-M10 - High Speed Steel For Enhanced Performance
Item: 6 Piece Hymnorq HSS Metric Combination Drill And Tap Bit Set With Spiral Flute And 1/4” Hex Shank, Ranging From M3-M10 - High Speed Steel For Enhanced Performance
Rating: 1

July 29, 2023

Brittle and broken bits.

Had these in my toolbox just in case for about a year. Finally had to tap some metric machine screws on a part. Immediately broke the M4 bit. Then broke the M5, and M6 tap bits the moment they bit into the 14 gauge mild sheet steel. Pretty pissed. Drove a few self tapping screws instead without any effort. Waste of money, waste of time.

Pros

Low cost, easy to use, seems durable

Cons

Not suitable for use on very thin materials

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