By Jim Rowe with Arch Global Precision, a Neill-LaVielle valued supplier This article is a fitting follow-up to the previous one, the topic of which was utilizing the proper spot drill in order to cut a straight hole. There, I mentioned subsequent tools (taps and reamers) that enter the hole created by the drill and the typical issues these tools …
Drills: Getting Straight to the Point
By Jim Rowe with Arch Global Precision, a Neill-LaVielle valued supplier In a previous article, I wrote about the damage incurred by solid carbide twist drills when spotting with incorrect angles – compared to the angle on the drill. There, I mentioned that the damage will most often lead to the drill cutting in a spiral. If trouble is then …
Centerdrills Don’t Center Drills
By Jim Rowe with Arch Global Precision, a Neill-LaVielle valued supplier Some of the most frequent abuses to a carbide twist drill comes from using a spotting tool with too sharp of a point angle compared to the drill point angle. I’m going to discuss the 2 largest contributors to damaging a high-performance carbide drill – the centerdrill and the …