Drill bit type for drilling holes in my exhaust baffle - Honda Shadow Forums : Shadow Motorcycle Forum

old4x4 · 05-23-2009, 12:06 PM

Before I tear the baffles outta my exhaust, I wanted to drill some holes in them just to see what happens. My question is, are the baffles made out of a tough steel or are they thick? I was going to get a cobalt bit for the job, but wondered if I sharpened a HSS 1/2" bit with my Drill Doctor if it would be sufficient to do the job cleanly.

gat803 · 05-23-2009, 01:33 PM

Your High Speed Steel bit will work fine, but punch a hole with a smaller bit first. Maybe something on the order of .250"

The larger bit will bite better with a smaller pilot hole already in place.

05-23-2009, 12:06 PM	#1 (permalink)
old4x4 Senior Member Join Date: Feb 2009 Location: NH Posts: 653	Drill bit type for drilling holes in my exhaust baffle Before I tear the baffles outta my exhaust, I wanted to drill some holes in them just to see what happens. My question is, are the baffles made out of a tough steel or are they thick? I was going to get a cobalt bit for the job, but wondered if I sharpened a HSS 1/2" bit with my Drill Doctor if it would be sufficient to do the job cleanly. __________________ 2003 ACE 750 SOLD 2009 Star Raider

05-23-2009, 01:33 PM	#2 (permalink)
gat803 Senior Member Join Date: May 2005 Location: Michigan Posts: 4,765	Your High Speed Steel bit will work fine, but punch a hole with a smaller bit first. Maybe something on the order of .250" The larger bit will bite better with a smaller pilot hole already in place. __________________ Hey look, a covered bridge...

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