Think & Tinker, Ltd.
CNC router bits and carbide cutting tools with tutorials and technical guides
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Tools for CNC Metal Machining

There is a wealth of information related to cutting metal to be found on the internet. Because the formulations of metals sourced from reputable vendors are made to international standards and specifications, their cutting properties tend to be very reliable from one batch to another. Setting RPM and feed rate for any particular specimen is typically a fairly straightforward matter of knowing the alloy you are machining and looking up the relevant parameters on the web.

Our metal cutters are made from the highest grade submicrograin tungsten carbide. Although they can be used to dry-cut most metals, superior performance and extended life will be realized if a good, water-based cutting fluid is used.

Most of our 1/8" shank tools are available with and without depth setting rings.
Straight Wall Micro Stub End-mills- 1/8 in. Shank
Diameters: 0.001 in. to 0.125 in. (0.025mm to 3.15mm)
Stub Length

This tool family features stub length flutes for greater stiffness and minimization of deflection when cutting with high chip loads. Precise radial relief reduces burr formation and chattering resulting in smoother, more uniform cutting.

2-flute Stub End-mills Carbide 2-flute stub end-mill for cutting precious metals, copper alloys and alluminum For precious metals, copper alloys and aluminum
Tool family: MN208

Our 2-flute stub end-mills were specifically designed for cutting non-ferrous metals like aluminum, copper, silver and gold. They are characterized by low aspect ratio flute geometries insuring low deflection and long bit life at relatively high feed-rates. The precise radial relief reduces burr formation and chattering resulting in smoother, more uniform cutting. Primarliy designed for surfacing and shallow pocketing.

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4-flute Stub End-mills Carbide 4-flute stub end-mill for cutting copper alloys, mild steel and stainless steel For copper alloys, steel, stainless steel
Tool family: MN408

Our 4-flute tools are made for cutting brass, sterling silver, steel and stainless steel. They are characterized by low aspect ratio flute geometries insuring low deflection and long bit life at relatively high feed-rates. The precise radial relief reduces burr formation and chattering resulting in smoother, more uniform cutting. Primarliy designed for surfacing and shallow pocketing.

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2-flute Ball-nose Stub End-mills Carbide 2-flute ball-nose stub end-mill for cutting precious metals, copper alloys and aluminum For precious metals, copper alloys and aluminum
Tool family: MN208

Our 2-flute ball-nose stub end-mills were specifically designed for engraving and 3D machining non-ferrous metals like aluminum, copper, silver and gold. They are characterized by low aspect ratio flute geometries insuring low deflection and long bit life at relatively high feed-rates. The precise radial relief reduces burr formation and chattering resulting in smoother, more uniform cutting.

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4-flute Ball-nose Stub End-mills Carbide 4-flute ball-nose stub end-mill for cutting copper alloys, steel and stainless steel For copper alloys, steel, stainless steel
Tool family: MN408

Our 4-flute ball-nose stub end-mills were specifically designed for engraving and 3D machining brass, sterling silver, steel and stainless steel. They are characterized by low aspect ratio flute geometries insuring low deflection and long bit life at relatively high feed-rates. The precise radial relief reduces burr formation and chattering resulting in smoother, more uniform cutting.

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Stub Length Engraving Tools - 1/8 in. Shank
For precious metals, copper alloys and alluminum
Diameters: 0.005 in. to 0.025 in. (0.125mm to 0.63mm)
Stub length

High speed engraving tools optimized for cutting non-ferous metals. Tip and flute geometries insure that top surface burr formation and sidewall chatter are minimized.

2-flute Engraving / Scoring Bits Carbide 2-flute V-tip stub engraving tool for cutting precious metals, copper alloys and aluminum For precious metals, copper alloys and aluminum
Tool family: EM2E8

Thin-web (0.005 in., 0.127mm) "V" tip cutters combine fine line machining with the extra rigidity needed for high feed rates. Applications include scoring, marking, scrimshaw, and engraving.

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Tapered-stub Trace Isolation Tools Carbide 2 & 3-flute tapered-stub engraving tool for cutting precious metals, copper alloys and aluminum For precious metals, copper alloys and aluminum
Tool families: EM2E8, EM3E8

These bits feature a flute design that has been fine tuned to insure very efficient debris removal, even at full plunge. Much stronger than a conventional V-tip bit, they cut at higher feed rates, producing a superior edge finish with a longer cutting life. The narrow taper angle reduces the effect of Z-axis variations on kerf width. Extensive testing in the field confirm that they outperform V-tip (1-flute and 2-flute) engraving bits in most non-ferrous metals

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4-flute Tapered Ball-Nose Carving Tools - 1/4 in. Shank Carbide 4-flute tapered ball-nose carving tool for precious metals, copper alloys and alluminum For precious metals, copper alloys and aluminum
Tool Family: CM404

Our 4-flute tapered ball-nose tools were originally designed for 3D CNC carving in very hard woods and composites. Their flute form and core geometry make them perfect for engraving and carving aluminum, copper, silver and gold. They are characterized by low aspect ratio flute geometries insuring low deflection and long bit life at relatively high feed-rates whether contour cutting or pocketing.

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4-flute Countersinks - 1/8 in. shank, 1/4 in. head 4-flute carbode countersink For precious metals, copper alloys and aluminum
Tool family: EM4E8

4-flute tools designed to produce chatter-free counter sunk holes with minimal burring in aluminum, silver, sterling, copper alloys and gold. The cutting edge geometry generates virtually zero lifting forces making the tools compatible with thin sheet goods.

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Metal Cutting Fluid Concentrate Water miscible cutting oil concentrate

PreciseBits cutting fluid is an innovative water miscible vegetable oil designed specifically for today's high production metalworking environment. Although primarily designed for cutting non-ferrous and precious metals, our cutting fluid has also been successfully tested on mild steel, cold rolled steel, various stainless steels and cast iron. Benefits include reduced tool temperature, longer tool life, top surface burr reduction, and improved edge finish.

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ColletCare® Spindle and Toolholder Cleaner / Lubricant ColletCare spindle and tool-holder cleaner and lubricant

Designed by a corrosion chemist to:
· dissolve varnish and gummy deposits in the spindle bore
· loosen rust
· inhibit corrosion
in spindle bores and on collets and toolholders.


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