Standard (or half round) cutters are made from Micrograin
carbide. These cutters include a threaded brass knob w/set screw for
Standard, half-round cutters look physically the same.
However, they are sharpened according to the material you are engraving, and
are available in various tip widths. The cutter specifications are noted
on the top of the gold knob of the cutter. For example, .015 FLX denotes .015
for the cutting width, and FLX refers to the material that cutter is sharpened.
FLX – sharpened
for standard plastic material
ACR – sharpened
SSS – sharpened
for stainless steel
BAL – sharpened
for brass, aluminum and lead
Tip-Off or Tip Width
The tip-off refers to the
flat on the tip of an engraving cutter that determines how wide the cutter will
cut. When we refer to tip width or tip size, we are describing the width the
cutter produces at the bottom of the cut.
Cutting Angle is the
angle of the cutting edge in reference to the shank of the tool. Standard tools
for plastic have a 30° cutting edge, Standard tools for metals have a 40°
cutting edge, and Profilers have a 15° cutting edge.
Included Angle is another
reference to the cutting angle, but is double the angle of the cutting edge to
the shank. Standard tools for plastic have a 60° included angle. Standard tools
for metals have a 80° included angle, and Profilers have a 30° included angle.
Clearance angles refer to
the angle behind the cutting edge that allows for chip clearance. Tools for
softer materials have more clearance and tools for harder material have less
clearance (and a stronger cutting edge).
Items of Interest
Gold Cutter Knob with Bristol Set Screw: ¼” 50-5053 ,
Bristol Set Screws: 50-5026
Cutter Wrenches: 50-5015/50-5018