The Tools We Make

On this page we have placed alot of information in order to help you when you get ready to ask us to create your tool. The first portion has our general product infomation. The following sections discuss individual types of tools. Please read the information on your desired product and if you have any other question please give us a call or email e-mail us at juan@nassco.net

If you would like to go directly to information about a specific tool you may click on one of the links below.
Circular Saws Routers Hole Saws Counterbores, Countersinks and Specialties Special Tools

Plated Bond Superabrasives

APPLICATIONS AND SPEEDS

Plated-bond diamond tools have proved to be the most productive and cost-effective for machining glass graphite and boron composites. In use, their grit exposure lends itself to a much faster and cooler cutting, thus eliminating melting and burning of the resins and avoiding internal delamination. It also preserves the surface integrity.

These tools can also be used for abrasive machining of other materials as shown in the "Applications and Operating Range" graph.

Although higher tool speeds generally mean faster cutting action, when working with composites it is not necessarily more efficient. There must be a compromise between speed and the friction heat the composite resins can withstand before melting and packing the tool solid. Wherever possible, the use of a coolant will greatly aid tool efficiency and extend its life. High volumes of ordinary water have proved to be the best coolant, although use of a soluble rust inhibitor is recommended to protect the equipment.

The following will provide the approximate tool speed for a variety of applications:

  • Tool speeds are measured in "surface feet per minute" (SFM)
  • SFM is the peripheral speed of a tool at a particular RPM (revolutions per minute)
  • D = Tool Diameter .262 = constant (derived from pi/12)

APPLICATIONS AND OPERATING RANGE

There are five basic operations

  1. Core drilling, counter sinking and counterboring
  2. Reaming and honing
  3. Surface grinding (vertical spindle) and/or planing
  4. Routing and internal grinding
  5. O.D. surface and form grinding (tangential contact) and sawing (circular saws)

These operations can be performed on the materials shown on the following table. Each application of a material and an operation is shown with a letter code (A thru Y) along with the abrasive grit size range.


TABLE A
MATERIAL TO BE MACHINED OPERATIONS
(APPLICATION CODE & GRIT SIZE RANGE)
I II III IV V
Aluminum N/R 0-60/400 N/R G- 25 I- 25
Boron Composite B-W/100 E-40/100 H-60/100 J-40/80 M-40/60
Cast Iron (Gray Iron) N/R C-60/400 G-25140 N/R H-25/40
Ceramics (less than 25# dens.) C-25180 G-25/80 M-25/60 P.25/60 Y-25/40
Ceramics (green, high dens.) B-40/80 E-40/230 N/R M-26/60 0-25/40
Ceramics (fired, over 25# dens.) N/R C-W/400 G-26/200 N/R 1-60/400
Epoxy F.R.P. (less than 50% reinf.) A-25/60 C-25/60 1-25160 K.25/60 Y.25/40
Epoxy F.R.P. (over 50% reinf.) B-25/80 C-25/80 j-25180 N-25/W Y.25/60
Polyester F.R.P. (Lam. G-9-13) A-25/60 C-25/60 H-25/80 J-26/60 P-25/40
Polyester (Pultruded) A-25160 C-25/60 1-25/60 M-25/40 T-25/40
Graphite (carbon, green, etc.) E-40/140 F-40/325 L-40/80 N-25/80 W-25/60
Graphite RP B.60/100 F-60/120 J-25/60 L-25/80 U-25/60
Graphite "KEVLAR" RP B-35/60 E-25/80 J-25/60 L-25/60 R-25/60
Thermoset Plastic A-25/60 B-25/60 G. 25160 H-25140 H-25140
Rubber (60 dur. or harder) N/R E-25/40 F-25/30 G-35/30 H.25/36

The "Operating Speed Range" graph depicts the speed recommended for each application in Table A. Within that range, the maximum speed is for optimum conditions such as minimum stock removal, very small angle of tool contact, large gril size and the use of coolant. The minimum speed would be for opposite type conditions.

Figure B


Table B
Grit Mesh (Tyler) and single lyaer Thickness in inches and microns
Mesh Size Sizes (Inches/Microns) Mesh Size Sizes (Inches/Microns)
25 .0276"/850 140 .0041"/106
35 .0195"/500 170 .0035"/90
40 .0165"/425 200 .0029"/75
60 .0097"/250 230 .0023"/63
80 .0069"/180 270 .0021"/53
100 .0058"/150 325 .0017"/45
120 .0019"/125 400 .0015"/38

Table C
Standard Core Thickness and Odering Codes for all Circular Saws
Thickness Code Availbe in Thickness Code Availbe in
.040" R 1" thru 6" .105" X 14" thru 24"
.060" V 1" thru 12" .135" Y 20" thru 30"
.090" W 6" thru 14" .156" Z 26" thru 48"

To calculate the kerf (see Figure C) add two times the grit size per table "b" to the core thickness

Figure C

A=Angle C=Core Thickness D=Diameter FR=Face Return K=Kerf of Cutting Thickness R=Return RAD=Radius RR=Radial Return


Table D
Shank Diameters for all Mounted Tools and Mandrels
Code Diameter Length Code Diameter Lenght
000 3/32" 1.5" 2 1/2" 2.5"
00 1/8" 1.75" 3 3/4" 2.5"
0 1/4" 2.5" 4 1" 3.0"
1 3/8" 2.5" 5 1 1/4" 3.0"

Table E
Face and Radial Returns
Code Return Code Return
0 None 5 1/2"
1 1/16" 6 5/8"
2 1/8" 7 3/4"
3 1/4" 8 1"
4 3/8" 9 1.5"

TOLERANCES

Tolerance over the diamond is relative to grit size


DIAMETRICAL:

When requesting or designing a tool, minimum tolerances are limited to the largest of .001", or 8 percent of the grit size, per layer. for example:

A 1" diameter core drill to core F.R.P.

Recommended grit - 40

Minimum tolerance per layer - 8% of grit size (.0165) is .0013:

Minimum diametrical tolerance plus/minus (.0013 x 2) .003 (rounded)


WIDTHS & KERFS:

Kerfs (cutting thickness) on saws are also limited by the grit size. If a .050" slot is required from a saw with 60 grit, the core thickness of this tool will have to be no larger than .039"; thus limitin its diameter due to springiness.


RADII:

Outside radii are limited by the grit size plus .002" plus 8 percent of the total. The very minimum radius attainable from 35 grit, for example would be .023".

Because all tolerances are depicted as to the very minimum, tighter tolerances can be achieved. Howerver, in some cases it will incur prohibitive costs. The grit size should be selected per the requirement demand. Surface finish, tolerances, or time allowance are the factors which will determine its size.

Be
Click on the links below for more information on each tool
Circular Saws Routers Hole Saws Counterbores, Countersinks and Specialties Special Tools


CIRCULAR SAWS

NASSCO Saw blanks are made of carbon steel. All saws of 12" diameter and larger are custom tensioned as standard construction

When ordering please specify:

  1. RPM
  2. Material being cut

SAW TYPES AVAILABLE

SC

= Standard Flat Core, Contiuous Rim "C"

SC

= Standard Flat Core, Slotted Rim "S"

ST

= Thin Rim Continuous Rim "C" (also available with slots "S")

SA

= Standard Flat Core, Mountable on "MM" Mandrel. Available from 3" to 10" Diameter Only.

HOW TO ORDER THESE SAWS

EXAMPLE: SC - 060 - V 2 S - 0625

  1. SC Type: Examples are left/Descriptions above
  2. 060 Diameter: "060" = 6"
  3. V Core Thickness: "V = 060" (See Table C)
  4. 2 Return: "2" = 1/8 return (See Table E)
  5. S Rim: "S" = Sloted "C" = Continuous (See Image to Left)
  6. 0625 Arbor Hole Diameter: "0625" = 5/8" diameter. (leave blank when ordering "SA"

For kerf or cutting thickness, add grit size (see Table B) to core thickness. For standard and special dimentions availavle, check chart below

Use of Slots recommended on 8" diameter and larger to avoid distortion and tension loss due to periferal heat when cutting.

The Mandrels can be used with "SA" Saws, on all 3" diameter or larger hole saws except "HC" type. All straight grinding "A" type, threading "E" type, planing "P" and radius wheels, 4" diameter or larger.

MM Sizes Available: (See Table D)

HOW TO OREDER

Example: MM - 1, 2, 3 or 4

  1. = 3/8" diameter shank for tools not exceeding 4" diameter and/or 2 lbs.
  2. = 1/2" diameter shank for tools not exceeding 6" diameter and/or 4 lbs.
  3. = 3/4" diameter shank for tools not exceeding 10" diameter and/or 10 lbs.
  4. = 1" diameter shank for tools not exceeding 12" diameter and/or 20 lbs.

MK HOW TO OREDER

Example: MK - O Mandrel

Limited to 3" diameter "R" core thickness or smaller diameter, all with 1/4" Arbor Hole. (See Table C)

Nassco Mounted saws are made of a solid piece of chormally teel (SAE 4130) (See Table D)

SM HOW TO OREDER

Example: SM - 20 - V 2 C - 1

  1. SM : Type "SM" = Mounted Saw
  2. 20 : Diameter "20" = 2" Diameter (Range 05 (.5") to 80 (8"))
  3. V : Core Thickness (See Table C)
  4. 2 : Return (See Table E)
  5. C : Rim "C" = Continuous, "S" = Slotted
  6. 1 : 0 to 3
    1. 0 = 1/4" Diameter for up to 2.5" diameter saw
    2. 1 = 3/8" Diameter for up to 4.0" diameter saw
    3. 2 = 1/2" Diameter for up to 6.0" diameter saw
    4. 3 = 3/4" Diameter for up to 8.0" diameter saw

ROUTERS

RO

Type: for use in trimming applications or where the contact is less than 180 degrees.

RT

Type: (Two Slots). For use in trimming or where contact is at 180 degrees and the material thickness is more than two router diameters

RF

Type: (Four Slots). To be used in blind grooving or milling.

RN

Type: For sciving, trimming and edging.

RL

Type: (Two Slots). For deep sciving and nose radius groving

Note: Do not plunge drll with routers. 90% of router failures are due to eccentric mounting. Please check collets or chucks for trueness before running.

RB

Type: Bearing guided router. Check below for bearing diameter and availability

HOW TO ORDER THESE ROUTERS

Example RF - 0500 - 08 - 1

  1. RF = Type: examples and named are in the images imediatley above.
  2. 0500 = Diameter: "0500" = 1/2 inch.
  3. 08 = Head Length: 08 = 1" (2 didget no. x 1/8" equal head length)
  4. 1 = Shank Diameter: 1" = .375 diameter (Omit if shank is the smae as head dia.)(See Table D)

RR

Type: Outside radius trimmer. Radius will have a .02", 3 degree frade on O.D. and bearing side.

HOW TO ORDER THE RR ROUTER

Example RR - 1 - 0375 - 2

  1. RR = Type: example is in the image imediatley above.
  2. 1 = Bearing Diameter: (See Bearing Avalibility Chart imediatley below)
  3. 0375 = Radius: 0375 = .375 radius
  4. 2 = Shank Diameter
Bearing Avalibility Chart
Code Diameter Code Diameter
1 1/2" 4 7/8"
2 5/8" 5 1"
3 3/4" 6 1-1/4"

HOLE SAWS

HS

Type: Used for drilling or coring when material and drill are mechanically held. It has Core Easy Release System (CERS).

HE

Type: For high production with a rear core ejector. Core is ejected by centrifugal force.

HP

Type: When location has been determined with a piolet hole. (1/4" diameter is standard)

HJ

Type: For use in conjunction with a drill bushing. Drill bushing journal is 1/16" larger than hole diameter.

HC

Type: The most effective and fastest hole saw to be used with a thru-center, water-feeding rotary union.

HOW TO ORDER THESE HOLE SAWS

Example HS - 01000 N - 01 - 1 - S

  1. HS = Type: examples and thier names are in the images imediatley above.
  2. 01000 = Diameter: "01000" = 1 inch. Diameter sizes start from 1/4 inch. Please call us so we can check on your size
  3. N = Application: "N" = diameter specified will be O.D. for hole diameter. "I" = diameter specified wil be I.D. for core diameter
  4. 01 = Inside Body Depth: 01 = 1" to be specified per material thickness. Availabe sizes are 01 to 99 (1" to 99") please check with us for feasibility
  5. 1 = Shank Diameter: 1" = .375 diameter (See Table D)
  6. S = Standing Strips: "S" leave blank if not required.

The S on the image above refers to item six on the list to the left.



COUNTERBORES, COUNTERSINKS AND SPECIALTIES

Countersinks

CS

HOW TO ORDER THIS COUNTERSINK

Example CS - 0500 - 100 - O

  1. CS = Type: Image to the left
  2. 0500 = O.D. "0500" = 0.500" diameter
  3. 100 = Included Angle 100 degress
  4. 0 = Standard body lenghts for micro-stops.
    • O used in the example. (O = Cylyndrical Shank - See Table D)
    • S A can be used too. (S A = Short Body 1/4"-28 Thd Micro-Stop)
      • Lengths
        • "S" = short 1/2"
        • "M" medium 3/4" (most common)
        • "L" = Long 1-1/2"
      • Thread
      • Thread Diameter
        • "A" = 1/4"-28
        • "B" = 3/8"-24
        • "C" = 7/16"-20

Counterbores

CB

HOW TO ORDER THIS COUNTERBORE

Example CB - 0625 - 2

  1. CB = Type: Image to the left
  2. 0625 = Diameter Code (Same as "C")
  3. 2 used in the example. (2 = Cylyndrical Shank - See Table D) MB can be used too. (MB = Medium Body 3/8"-20)

Counter Bore-sink

CC

HOW TO ORDER THIS COUNTER BORE-SINK COMBINATION

Example CC - 1000 - 0625 - 090 - 3

  1. CC = Type: Image to the left
  2. 1000 = O.D. "100" = 1.000" diameter
  3. 0625 Transition diameter from "CB" to "CS". "0625" = 0.625" diameter.
  4. 090 CS included angle. "090" = 90 degrees
  5. 3 = Cylindrical Shank (See Table D). LC can be used too. (LC = Long, 7/16th-20 thds)

Single Polycrystal Blade Countersink

KS

HOW TO ORDER THE SINGLE POLYCRYSTAL BLADE COUNTERSINK

Special Design to be used on "Kevlar." Odering Instructions same as "CS" above with "KS" as the prefix

Polycrystal Diamond Spade Drill

KD

HOW TO ORDER THE POLYCRYSTAL DIAMOND SPADE DRILL

Specialy designed to be used on "KEVLAR" Not to be used on freehand drilling

Example KD - 0250 - 1 - 0

  1. KD = Type: Image to the left
  2. 0250 = Hole diameter required "0250" = 0.250" diameter.
  3. 1 Depth of hole "1" = 1" hole (available on round inches)
  4. 0 Shank diameter (See Table D)

Polycrystal Diamond Two-Blade Router

KR

HOW TO ORDER POLYCRYSTAL DIAMOND TWO-BLADE ROUTER

also used on "KEVLAR"

Example KR - 0625 - 03 - 1

  1. KR = Type: Image to the left
  2. 0625 = Hole diameter required "0250" = 0.250" diameter.
  3. 03 Width of cut "03" = .30" (available up to "05" with 2 blades and up to "10" (1") with four blades.
  4. 1 Shank diameter (See Table D)


SPECIAL TOOLS

P

Edge planer or vertical surface cutter available on a single piece. Mounted on "MM" Mandrel. (Suggested for 4" diameter and larger) Also as a plane wheel.

HOW TO ORDER:

Example: P - 040 - 5 3 - 2

  1. P: Type
  2. 040: Diameter "040" = 4" diameter
  3. 5: Face return "5" = 1/2" (see Table C)
  4. 3: Radial Return 3 = 1/4" (see Table C)
  5. Variable
    • 2 = .500" diameter shank (see Table C)
    • M = Mandrel
    • 0500 = Arbor Hole diameter
A - 1A1

Type Wheel

Also availbable with shank or single piece as "p". Use same suffic codes when ordering.

HOW TO ORDER:

Example: A - 060 - 0250 - 2 - 0500

  1. A: Type
  2. 060: Diameter "060" = 6" diameter
  3. 0250: Kerf "0250" = 1/4"
  4. 2: Return "2" = 1/8" (see Table E
  5. 0500: Arbor hole "0500" = .500" diameter
  6. Variable
    • 0500 = Arbor Hole diameter
    • 2 = .500" diameter shank (see Table C)
    • M = Mandrel
E

Angle Wheel (Threading)

Also availbable with shank or single piece as "p". Refer to "Radii Tolerance" of Data Section in the General Information above for minimum apex radius. If not specified the wheel will ve made with a two-times grit size radius.

HOW TO ORDER:

Example: E - 100 - 090 - 0500 - 1 - 0750

  1. E: Type
  2. 100: Diameter "080" = 8" diameter
  3. 090: Included angle "090" = 90 degrees
  4. 0500: Kerf '0500" = 1/2"
  5. 1: Return "1" = 1/16" (see Table E)
  6. Variable
    • 750 = "Arbor Hole 0750" = .750" diameter
    • Can also be optioned a "P" above
F

Full or corner radius kerf

HOW TO ORDER:

Example: F - 080 - 0250 - 0500 - 2 - 0625

  1. F: Type
  2. 080: Diameter "080" = 8" diameter
  3. 0250: Radius "0250" = .250"
  4. 0500: Kerf '0500" = 1/2"
  5. 1: Return (see Table E)
  6. Variable
    • 0625 = "Arbor Hole 0625" = .625" diameter
    • Can also be optioned a "P" above

National Superabrasive Specialties

Phone 435 652 1700 - Fax 435 652 1313

e-mail us at juan@nassco.net