PartsTable
Technical Data Sheet

DBTC21/64 — DRILL,TWIST

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

DBTC21/64: DRILL,TWIST.

The DRILL,TWIST is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, point_type: SPLIT, point_angle: 135.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 3.312 INCHES NOMINAL IN, overall_length: 4.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5133-01-604-4305, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
DBTC21/64
NSN: 5133-01-604-4305
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
CAGE: 55719 — IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
point_typeSPLIT
point_angle135.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length3.312 INCHES NOMINAL IN
overall_length4.625 INCHES NOMINAL IN
shank_diameter0.328 INCHES NOMINAL IN
special_featuresJOBBERS;FRACTIONAL SIZE 21/64
cutting_end_styleGENERAL PURPOSE
cutting_rotation_directionRIGHT-HAND
specification/standard_data05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5133-01-604-4305
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DRILL,TWIST TITLE COMPONENT PN DBTC21/64 MFR DRILL,TWIST
KEY FEATURES
•
SHANK DIAMETER: 0.328 INCHES NOMINAL IN
•
CUTTING END STYLE: GENERAL PURPOSE
•
FLUTE LENGTH: 3.312 INCHES NOMINAL IN
•
CUTTING ROTATION DIRECTION: RIGHT-HAND
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SHANK STYLE: STRAIGHT ROUND
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.328 INCHES NOMINAL IN
CUTTING END STYLEGENERAL PURPOSE
FLUTE LENGTH3.312 INCHES NOMINAL IN
OVERALL LENGTH4.625 INCHES NOMINAL IN
CUTTING ROTATION DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SHANK STYLESTRAIGHT ROUND
SPECIAL FEATURESJOBBERS;FRACTIONAL SIZE 21/64
MATERIALUNABLE TO DECODE
POINT ANGLE135.0 DEGREES NOMINAL
OTHER ITEMS IN FSC 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5133-00-001-1296 5133-00-001-1298 5133-00-005-2258 5133-00-005-7727 5133-00-005-8710 5133-00-005-8711 5133-00-005-8712 5133-00-005-8713
SUBSTITUTES & CROSS-REFERENCES 2
B94.11MReference document
Same NSN cross-reference
Reference document — Design control — primary reference
2164-COReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DBTC21/64?
DBTC21/64 is a DRILL,TWIST.
What parts can replace DBTC21/64?
There are 2 known substitutes for DBTC21/64: B94.11M, 2164-CO. Substitute compatibility should be verified for your specific system.
What is the NSN for DBTC21/64?
DBTC21/64 is cataloged in the U.S. Government catalog under NSN 5133-01-604-4305. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.