KSI CNC Turning Centers

Quick Reference Guide*

MACHINE HEAD STOCK
COLLET		 GUIDE
BUSHING		 DRILL
COLLET		 PICK-OFF
COLLET
SM20 TF25 TD25-NS MPC16 TF25
SQC20 TF25 TD25-NS MPC16 TF25
SQC32 TF44 TD32S MPC16 TF37
SQC38 TF48 TD38 MPC16 TF44

* Refer to separate section in this catalog for MPC attachment collets.

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Steel Collets
Round

CAT. NO. REFERENCE DIMENSIONS INC. RANGE
D E L a°
TF25 25mm
.984		 35mm
1.380		 77mm
3.032		 16 1/32
.001		 1/8 – 15/16
.120 – .813
TF37 37mm
1.456		 47mm
1.850		 92mm
3.622		 16 1/16
.001		 1/4 – 1-1/4
.200 – 1.250
TF44 44mm
1.732		 52mm
2.047		 92mm
3.622		 16-1/2 1/16
.001		 1/4 -- 1-7/16
.200 -- 1.490
TF48 48mm
1.889		 60mm
2.362		 94mm
3.700		 15° 1/16
.001		 3/8 – 11/2
.300 -- 1.500

NOTE:
1. Collets are normally stocked in the fractional increments shown. All other bores are made to order.

2. Collets are available in standard and extra precision (XP) for critical applications.

3. Headstock collet bores 1/2 inch and larger are grooved for extra holding power. Any variation must be specified when ordering.

4. When ordering pick-off collets, please specify smooth bore.

5. If a collet used in a pick-off application requires an extended nose length, use the sufix “EN” and refer to separate section for ordering details.

6. Carbide lined collets have a wear life many times that of steel collets; in addition, they resist “galling and scratching” of problem materials.

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Steel Collets
Hexagon & Square

HEXAGON
CAT. NO. INC. RANGE
TF25HX 1/16 3/16 – 11/16
TF37HX 1/16 1/4 -- 1-1/16
TF44HX 1/16 1/4 -- 1-1/4
TF48HX 1/16 3/8 -- 1-1/4
SQUARE
CAT. NO. INC. RANGE
TF25SQ 1/16 3/16 – 9/16
TF37SQ 1/16 1/4 – 7/8
TF44SQ 1/16 1/4 – 7/8
TF48SQ 1/16 1/4 – 1-1/4

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Carbide Draw Bushings
Round

CAT. NO. REFERENCE DIMENSIONS INC. RANGE
D L a° THD. mm
TD25-NS 28mm
1.102		 82mm
3.228		 16° 25 x 1 1/32
.001		 1/8 – 3/4
.100 – .781
TD32S 42mm
1.654		 82mm
3.228		 16° 40 x 1 1/16
.001		 1/4 -- 1-1/4
.200 – 1.250
TD38 46mm
1.811		 92mm
3.622		 16° 45 x 1 1/16
.001		 1/4 – 1-7/16
.200 -- 1.490

NOTE: Generally, guide bushings are used in stationary or revolving guide bushing holders. For profile material, revolving bushings are essential. However, in special cases where round stock is turned in revolving bushings and extreme concentricity between the stock and the turned diameters is required, extra precision (XP) bushings are available. These bushings command higher prices, longer deliveries, and should only be specified when the requirements justify their use.

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Steel Draw Bushings
Hexagon & Square

CAT. NO. INC. RANGE
TD25-NSHX 1/16 3/16 – 11/16
TD32SHX 1/16 1/4 – 11/16
TD38HX 1/16 1/4 – 1-1/4
CAT. NO. INC. RANGE
TD25-NSSQ 1/16 3/16 – 9/16
TD32SSQ 1/16 1/4 – 7/8
TD38SQ 1/16 1/4 – 1.000

Hexagon and square collets and bushings are normally stocked in the increments (INC) listed. Odd size hexagon and square bores and other profile shapes are made to order. In these cases, it is requested that a stock sample be sent with the purchase order.

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Draw Bushings
Steel or Meehanite

CAT. NO. INC. RANGE
TD25-NS 1/16
.001		 1/8 – 3/4
.050 – .796
TD32S 1/16
.001		 1/4 – 1-1/4
.200 – 1.250
TD38 1/16
.001		 1/4 – 1-7/16
.200 – 1.490

NOTE: Meehanite is compatible with most materials, including those which have a high tendency to “pick up”. However, meehanite has a wear life that is considerably shorter than that of carbide. Meehanite is supplied in round bore sizes only.

* When ordering please add a suffix of “ST” for steel bushing or “M” for meehanite bushing.

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