5
TRAK-STAR Twister Disposable Rail Cutters
Made from Premium H.S.S.
• Gold Coating for All Around Drilling
• Black Coating for Improved Performance
in New Harder Rail.
TRAK-STAR Rail Drills are designed to use Twister
Bits, and to achieve maximum effi ciency from your
unit, we recommend that no substitutes be used.
** Twister Bits are economical and disposable
--- there is no need to resharpen --- however it is
possible. Tools can be sharpened 2 to 3 times.
Send cutters to Trak-Star to the attention of the
Resharpening Department.
**
Twister Rail Bits have been shown to drill holes
in rails up to 4X faster than twist drills or spade
drills, and they produce clean, round, burr-free
holes without the need to chamfer.
**
Multiple cutting edge design, along with proper
coolant fl ow, produces a cool cut raising the rail
temperature in the hole no more than 35°F above
ambient temperature. This prevents work harden-
ing, stress cracking, service failures, and repeated
repairs.
Cutter
Size,
inches
Decimal
Equivalent
Gold -
TiN Coated
Part Number
Black -
TiAlN Coated
Part Number
7/8
.08750
15228
15328
15/16
.09375
15230
15330
1
1.0000
15232
15332
1-1/16
1.0625
15234
15334
1-1/8
1.1250
15236
15336
1-3/16
1.1875
15238
15338
1-1/4
1.2500
15240
15340
1-5/16
1.3125
15242
15342
1-3/8
1.3750
15244
15344
1-7/16
1.4375
15246
15346
1-1/2
1.5000
15248
15348
1-11/16
1.6875
15254
15354
Pilot for Twister Bits
03635
Installing / Replacing Twister
TM
Bit
1. Be sure engine is stopped and turned off. Turn off
coolant at shut-off. The spring seat system located
within arbor was not designed to be 100% leak proof.
2. Position arbor so the cutter area is easily accessible.
Do not depress pilot pin during procedure to release
seal. Doing so will result in releasing pressurized
contents of arbor cavity and coolant loss. Some loss,
however, is normal due to cavity between cutter shank
and spring seat.
3. Insert pilot in shank end of Twister Bit.
4. Insert the Twister Bit until long fl at on cutter shank is
aligned with roll pin inside arbor. Twist cutter clockwise
(do not depress pilot in case of cutter replacement for
reason noted in #2). The cutter is automatically held
into place.
Insert Cutter
into Arbor
Twist
OFF
ON
Twist
