
Precision Twist Drill
5/16" High Speed Steel Drill Bit, Oxide, 135° point - Precision Twist Drill 5999749
MFR# 5999749Series R88CO-R89CO
$13.36List $17.13
Save 22%
In stock - ships in 1-3 business days
Request a quote
- Fast sourcing
- Regrinding available
- 20+ yrs expertise
Drill size5/16
Flutes2
CoatingOxide
Description
The Precision Twist Drill 5999749 is a 5/16" High Speed Steel drill bit with a Oxide finish, 135° point. Suited for steel, stainless steel, cast iron, non-ferrous metal, superalloys & titanium, hard material. 1-5/8 flute length, 4-1/2in overall length. Series R88CO-R89CO.
Specifications
Coating finishOxide
Coolant throughNo
Cutting directionRight Hand
Double marginNo
Drill bit materialHigh Speed Steel
Drill bit size in5/16
Drill bit size range0.3000 - 0.3500
Drill point angle degrees135
Flute by diameter ratio5xD
Flute length in1-5/8
Flute typeSpiral
Maximum drilling depth in1-5/8
Number of flats0
Number of flutes2
Overall length in4-1/2in
Point typeStandard
Primary workpiece materialSteel; Stainless Steel; Cast Iron; Non-Ferrous Metal; Superalloys & Titanium; Hard Material
Shank diameter in5/16in
Shank length in2-7/8in
Shank typeStraight-Cylindrical
Specification designationNAS
Specification numberNAS 907
Spiral typeRegular
StandardsNAS 907
Tool applicationDrilling
Tool performanceGeneral Purpose
Web configurationTapered
Web thinningWeb-Thinned
Can't find your exact tool?Send us a part number — we'll cross-reference it.
Dull tools?Regrinding extends tool life and saves cost.
Alternate & equivalent tools
Matched on diameter, flute count, and material. Need a specific brand or coating? Cross-reference this tool.
Spec-matched alternates load as the catalog fills in. Meanwhile, browse the End Mills collection and filter by diameter, flutes & length of cut.
