Star-M Single Flute Chatterless HSS Countersink 16mm Reviews

4.5 Rating 4 Reviews

The vast majority of countersinks are designed for working on steel and have three or more flutes. For softer materials like wood, plastics and yellow metals, a single flute design is preferable because it can't develop a resonance - the cause of chatter and triangular countersunk holes.Made in Japan from high speed steel, this single flute countersink produces beautifully smooth, concentric conical countersunk holes.Satisfyingly over specified for woodworking, if it does end up being inadvertently used on unhardened steel it is unlikely to sustain damage. It also performs superbly on brass, bronze, aluminium and plastics.

Visit Product Page

“First, a 5-star review for customer service. I phoned in to ask a couple of questions before purchasing, and the lady I spoke to couldn't have been nicer. Respectful, patient (I'm a novice who knows nothing!), professional and just all round nice. Now, this countersink drill bit is well worth its premium price. Needed it for countersinking into plywood and worried about splitting and excess chatter. It drills cleanly, with beautiful smooth round edges. Workshop Heaven will always be my first port of call for tools because the quality of their selections is unbeatable, especially their Japanese tool selection. And arrived within 2 days. Many thanks Workshop Heaven.”

Helpful Report

Posted 4 months ago

“The single flute is far more likely to create a round countersink than the six-fluted alternatives. Lovely and simple design.”

Helpful Report

Posted 1 year ago

“Only tried this on a pre drilled hole and found it wandered slightly giving an off centre countersink. Maybe best to countersink first then drill.”

1 Helpful Report

Posted 1 year ago

“Best wood countersink I've ever used. Indents produced by this are perfect, only used on hardwood with an eggbeater so far and everything is smooth as silk. I would recommend this tool to anyone.”

1 Helpful Report

Posted 5 years ago