2 New Old Stock GROBET USA 6 Flt CHATTERLESS COUNTERSINKS 1/2" X 2" 100 Deg Threadwell Type: All-round Usage

Type: All-round Usage

Atlas or Hardinge etc

The pair is parallel to + or - 0

2 New Old Stock Newmans Canada ( a long closed Canadian Manufacturer of High Quality Tool Steel) HSS 5/8" x 6" Square Tool Bit Cutter Blank

2 New Old Stock GROBET USA 6 Flt CHATTERLESS COUNTERSINKS 1/2" X 2" 100 Deg Threadwell Type: All-round UsageTwo New Old Stock GROBET ( a manufacturer of premium quality tool and diemakers tools) USA 6 Flute CHATTERLESS COUNTERSINKS 1 2" diameter X 2" long (100 Degrees Compound Angle) 3 8" Shank . The countersinks are new old stock perhaps from the 1960's or 70's the Angle is stamped as 50 Degrees which is an older way of stating the angle, today most companies even Grobet express the compound angle formed at the peak or head of the countersink which in this