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Precision Twist Drill 6480994 321MD Heavy Duty Mechanic's Drill, 7/16 in Drill - Fraction, 0.4375 in Drill - Decimal Inch, HSS, Black Steam Oxide/Bronze Oxide
Part #DORMER 6480994
Legacy #26133328
MFG #6480994
Precision Twist Drill Mechanic's Drill, Heavy Duty, Series: 321MD, 7/16 in Drill - Fraction, 0.4375 in Drill - Decimal Inch, 4-1/2 in Overall Length, 2-15/16 in Cutting Depth, 2-15/16 in Flute Length, 3-Flat Shank, 135 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Steam Oxide/Bronze Oxide
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Product Attributes
Brand : Precision Twist Drill
Type : Heavy Duty
Series : 321MD
Drill Size - Fraction : 7/16, 7/16 in
Drill Size - Decimal Inch : 0.4375
Overall Length : 4-1/2, 4-1/2 in
Product Documents
Product Features
- Shorter flute and overall length than the 332HD jobber length drills for superior rigidity when used in portable drills
- Shorter flute and overall length than the 332HD jobber length drills for superior rigidity when used in portable drills
- Additionally features 3-flats on the shank for tighter chucking particularly in keyless chucks
- Additionally features 3-flats on the shank for tighter chucking particularly in keyless chucks
- The self-centering 135 deg split point additionally reduces the thrust requirements and minimizes 'walking' particularly on curved surfaces
- The self-centering 135 deg split point additionally reduces the thrust requirements and minimizes 'walking' particularly on curved surfaces
- Functional steam and bronze oxide surface treatment provides both abrasion resistance and improved lubricity
- Functional steam and bronze oxide surface treatment provides both abrasion resistance and improved lubricity