Precision Twist Drill SJ-50DC 7466339 solid carbide rotary burr with 60° countersink shape and double cut geometry. 1/2" cutting diameter, 1/4" shank, 7/16" usable length, 2-3/16" overall length. Cylindrical shank, bright finish. For deburring and chamfering in steel, stainless steel, cast iron, non-ferrous metals, high-temperature alloys, and hardened materials.

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Countersinking 60°

Burr Shape

J - 60° Countersink Shape

Burr Type Code (BTC)

Double Cut Geometry

Coating

Bright

Connection diameter - fractional inch (DCON MS)

1/4

Connection diameter - inch (DCON MS)

0.25

Connection diameter - millimeter (DCON MS)

6.35

Cutting diameter - fractional inch (DC)

1/2

Cutting diameter - inch (DC)

0.5

Cutting diameter - millimeter (DC)

12.7

Depth of cut maximum - fractional inch (APMX)

7/16

Material

HM

Overall length - fractional inch (OAL)

2.3/16

Overall length - inch (OAL)

2.1875

Overall length - millimeter (OAL)

55.56

Point Angle (SIG)

60

Shank

Cylindrical shank

Usable Length - fractional inch (LU)

7/16