Chatterless Countersink 90° Six Flute 5/16"
(Pack of 1.0)

Kent Automotive

Centerline Angle 45°, Included Angle 90°
• Staggered cutting edges inhibit the occurrence of resonant or harmonic vibration
• No break-in period required
• Made of M2 high-speed steel
• Made in USA
45° Centerline Angle
• Can be used in drill presses, screw machines, automatics, lathes, hand tools or special set-ups
NOTE: Use of a good quality cutting fluid is recommended.
CAUTION: Any cutting tool may break or shatter under improper use. Government regulations require use of safety glasses and other appropriate safety equipment at all times in the vicinity of use.

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Product Description

Centerline Angle 45°, Included Angle 90°
• Staggered cutting edges inhibit the occurrence of resonant or harmonic vibration
• No break-in period required
• Made of M2 high-speed steel
• Made in USA
45° Centerline Angle
• Can be used in drill presses, screw machines, automatics, lathes, hand tools or special set-ups
NOTE: Use of a good quality cutting fluid is recommended.
CAUTION: Any cutting tool may break or shatter under improper use. Government regulations require use of safety glasses and other appropriate safety equipment at all times in the vicinity of use.

Technical Specifications

Item#: 57144
Type Countersink
Body Diameter 5/16 "
Flutes Six
Included Angle 90 °
Centerline Angle 45 °
Shank Size 1/4 "
Shank Length 1 "
Overall Length 2 "
For Screw Size No. 3 - No. 5
Maximum RPM (Aluminum) 1,710 RPM
Maximum RPM (Cast Iron or Mild Steel) 850 RPM
Material M2 High Speed Steel
UNSPSC #: 23241603
TAA Compliant: Yes
Weight: 0.04 lb

Product Restrictions

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