Edited by Bernard Martin
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Often times in a shop, a saw arbor is a saw arbor is a saw arbor.  That's just not the case and Martindale Gaylee offers several solutions.  They have variants to saw arbors to meet your specific needs whether it be in a CNC milling machine, a CNC Lathe, a manual mill or even a Swiss Style CNC machine. This includes:
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1. ​TI-LOC® Saw Arbors with integrated ER taper
2. ​Gold Star Precision Series Saw Arbors
3. General Purpose Series Saw Arbors​
4. Custom Saw Arbors

Let's take a look at the differences below.
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The Ti-Loc® SwissClamp System is a taper-integrated small tooling system is designed to work with virtually any collet or tool holder that employs the ER collet system (DIN6499).  The Ti-Loc directly mounts into ANY ER Taper Live or Static Tool Position.

The Ti-Loc® System works with any existing tool holder and most all ER collet clamping nuts. Simply insert the Ti-Loc holder into any ER nut and twist to align the locking cam profile jus was you would for any ER collet.

The Ti-Loc® SwissClamp System can be used in any machine that has ER collet live tooling. It comes standard with ER 11, ER16 and ER20 taper arbors that serve as their own collet, eliminating need for two-piece arbor system.

This single piece design adds rigidity of set-up and improves total indicated runout (TIR). In fact, it reduces tolerance “stacking” to an incredibly low TIR of less than 0.0002".  To top it off, it's less expensive & more cost effective than most comparable two-piece arbor systems.

A recommended maximum saw thickness is approximately 0.080”
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Martindale Gaylee also offers a Gold Series reach arbor. These arbors are heat treated and ground to 0.0004” T.I.R. concentricity and squareness.

The Gold Series are engineered for use with carbide saws and where accuracy is a must. This VIBRA-CORE design, along with the deep low profile caps, gives extra support and less vibration.
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Martindale Gaylee's general purpose slitting/slotting saw arbors are all ardened all over (58/60 Rc) for added toughness on cutter locating surfaces and shanks.

The General Purpose Series Saw Arbors shanks ground to within 0.001" T.I.R. of cutter location diameter. They have an extra long, strong body with a protective black oxide finish. The super low profile on caps allows the cutter to reach areas inaccessible with conventional arbors. 

Stout plug: extra support, less vibration sum up the benefits of this style.  Oh, and Weldon style shanks are readily available. ​

Can be made extra-long for reach beyond or inside part features

• Accommodates multiple cutters for straddle or profile
• Different outside diameter cutters on the arbor
• ID grooving operations
• ​Made with or without keyways

Coolant Fed Tooling OFFERS A LINE OF COATED THROW-AWAY SPADE DRILL INSERTS AND COOLANT HOLDERS  

CLEVELAND, OH – CFT - Coolant Fed Tooling has a line of coated throw-away spade drill inserts and coolant holders. The combination of materials and multi-layered coatings provide for a broader range of applications subsequently reducing inventory.

The throw-away spade drill inserts are offered in five different coatings to fit buyers specific drilling needs. The available coatings are Ultra-Tin, TiN, TiCN, TiAIN, and Life-Coat.

All of the coatings have distinct features that make them ideal in a wide array of drilling activities. The coatings, in conjunction with the tooling substrates, including high speed steel, cobalt, and carbide, allow for higher speeds and feeds, longer tool life, and reduced machining time. 

This line of coated throw-away spade drill inserts and coolant holders is an excellent, low-cost tooling technology that can save time and increase productivity

CFT Coolant-Fed Tooling and Systems has a large inventory of products in stock now and available for immediate delivery. To learn more about this new line and other coolant-fed products please visit

compiled & edited by Bernard Martin

As more and more of our customers are using Martindale Gaylee Circular saws we put together this guide to the commonly asked questions such as "Is there a rule-of-thumb for the number of teeth?" or "How much side clearance should I have?" Here we cover a lot of the fundamentals of selecting the right circular saw blade configuration, some tips, tricks, and troubleshooting for when things go wrong. 

​These are general cutting speed recommendations for circular saws used in metalcutting from Martindale/Gaylee. The may vary from application to application but are basically some general suggestions starting parameters when using high speed or carbide saws. 

• HSS Saws: .002”-.006”  (IPT-inch. per tooth / CLPT-chip load per tooth)
• Carbide Saws: .0002”-.0015”  (IPT -inch. per tooth / CLPT - chip load per tooth)

This is a conservative recommendation as a starting point for feed rates, and may vary depending on material being cut and cutting speed (SFPM).

Generally speaking, deep cuts and soft material require fewer teeth for chip clearance and stronger teeth (landed).

Thin material requires more teeth, but keep-in-mind that at least 2 teeth on the blade need to be engaged in cut. Hard materials and narrow slots (under .025”) likewise require more teeth.

Hard Materials require more teeth, and  give a smoother cut,  but at a much lower production rate.  ​

Alternately beveled teeth keep chips from sticking in the cut and in the tooth gullets.

And Remember that there should be at least 2 teeth engaged in the cut at all times.

RAKE ANGLES
​Just as in an end mill or a band saw blade, a rake angle is the term used to describe the direction of the blade’s teeth, as referenced from the rotation and central axis of a saw blade. If you imagine a line going from the exact center of the blade to each tooth, having the front of the tooth directly on that line would be a zero degree rake angle. The rake angle of the blade is described in comparison to that imaginary line.

A positive rake angle meana that the teeth are angled more towards the angle of rotation, while a negative rake angle would mean that they are angled backwards, away from the direction of rotation. Generally speaking, the preferred rake angle is:

• 5° to 10° positive for other soft materials.
• 5° negative for yellow brass
• On center for steel.

SIDE CLEARANCE (Tangential Clearance Angle)
This is also known as dish or hollow grind.  You measure down the side of the tip and the difference it is the difference between front and back.  As you cut, material it gets compressed and springs back after the cutting edge passes.

​A steep side clearance angle gives plenty of room for the material to expand and prevents thermal expansion of the base material.  Keep in mint that a very flat side clearance angle can provide a smoother cut in some materials.  For stainless steel and tenacious metals such as copper, zinc, tin or lead an increase in the side clearance is desirable as these materials tend to "spring back" (thermal expansion) on the blade. 

The newly released WhizCut Catalogue 2022 is now available as hardcopy or download! It includes new products such as the WhizTwin Y-axis holder, the WhizHip 8x8 for big opportunities in small machines and the WhizAdapt toolholding system.

​Discover brand new precision tools in the latest edition of the WhizCut catalogue. Their expertise is in precision cutting tools specially developed for CNC swiss automatic lathes.

The new catalogue 2022 has an expanded range of products and smart tooling solutions that we know can lead to better production possibilities for our customers. 

• WhizTwin is now a complete range with the additon of the Y-axis parting off holder. It has maximal stability and supreme chip control. 
• ​Radius 0,4 inserts - Parts keep getting bigger - and so are we at WhizCut with our extended selection of radius 0,4 inserts for turning.
• WhizCut PZ turn-adaption - Discover the WhizCut PZturn-adaption, an invention with quick change heads and internal high pressure coolant!

Jergens Inc. offers fixture plate machining kits and receiver bushing plugs for its line of Ball Lock quick-change mounting systems.
EDITED BY JEDD COLE  Production Editor, Modern Machine Shop​

The machining kits consist of one fixture plate, four extra-long Ball Lock shanks and four spacers that provide clearance between the fixture plate and subplate below. This open space allows cutting tools to “break through” the fixture plate without damaging the subplate, making it possible to machine fixture plates while mounted to the same subplates they will be used with during production, the company says.

The plugs are designed to prevent chips and coolant from accumulating inside receiver bushings that are not in use during certain operations. This saves time by eliminating the need to clean out the bushings between setups. The receiver plugs are made of blue anodized aluminum, providing durability for better resistance to hot chips when compared to plastic plugs.

The flush mount design means the plugs do not protrude above the subplate surface, making it easier to clean and avoiding interference during machining. These plugs are available in standard sizes to accommodate different hole openings and come with an O ring and tapped hole for easy installation.

by DEREK KORN | Editor-in-Chief, Production Machining Magazine

For some turning applications, chuck jaws or other conventional workholding devices for CNC lathes can cause a part to distort as clamping force is applied. This can be the case for large, thin rings such as the one shown on the left. Those workholding elements can also prevent full access to a part, which might necessitate reclamping for an additional operation.
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The threaded grippers install in the top of a fixture plate and require a through-hole to enable the UV light to pass up and through the gripper to cure the adhesive. For most turning applications, this would be done at a workstation and the fixture plate with bonded part would then be installed on the lathe.
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To do this, the top of each gripper and the areas of the part to be gripped are cleaned with isopropyl alcohol. Adhesive is deposited on the top of each gripper so that the entire gripper face is covered and the gap between the face and underside of the part is filled. The gaps (thus, the thickness of the adhesive) can range from 0.020 to 0.120 inch, depending on part flatness. The part rests on hard stops installed in the fixture plate that are slightly taller than the gripper tops to achieve the proper gap.
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To cure the adhesive, the UV light source’s light guide is inserted into the backside of each gripper and the source is activated. It typically takes 60 to 90 seconds for the UV light to cure the adhesive, bonding the gripper to the part. Once curing is complete for all grippers, the fixturing element with the part can be installed in the machine and machining can be performed.

Once machining is completed, a wrench is used to back off each threaded gripper, shearing the adhesive bond with the part. The residual adhesive can then be peeled off the part and grippers after applying steam, or a hot water soak or spray.

​The number of required grippers is based on the size of the part and its geometry, the company says. Axial holding force depends on gripper size and can range from 250 to 800 pounds. Grippers are made from hardened, corrosion-resistant stainless steel and have a black oxide finish. The adhesive is compatible with most water- and oil-based coolants and cutting fluids. It is said to be able to hold a variety of ferrous and nonferrous metals as well as plastics, ceramics and composite materials.