P&N Workshop 90° Three Flute Countersink Drill Bits

• P&N Workshop 90° Three Flute Countersink for countersinking / counterboring screw holes.
• Can be used in portable & pedestal drilling machines.

• Designation: N
• Material: High Speed Steel
• Finish: Bright
• Point Type: 90°

• Optimal for Steel - Non-alloy, cast & free cutting (~ 0.15 %C)- 125 HB
• Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)- 190 HB
• Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)- 250 HB
• Optimal for Steel - Non-alloy, cast & free cutting (~ 0.75 %C)- 270 HB
• Optimal for Steel - Low alloy & cast < 5% of alloying elements- 180 HB
• Optimal for Steel - Low alloy & cast < 5% of alloying elements- 275 HB
• Optimal for Steel - High alloy, cast & tool- 200 HB
• Optimal for Cast Iron, Grey (GG) - Ferritic / Pearlitic - 180 HB
• Optimal for Cast Iron, Grey (GG) - Pearlitic- 260 HB
• Optimal for Cast Iron, Nodular (GGG) - Ferritic- 160 HB
• Optimal for Cast Iron, Nodular (GGG) - Pearlitic- 250 HB
• Optimal for Cast Iron, Malleable - Ferritic- 130 HB
• Optimal for Aluminum & Magnesium, wrought alloy - Non Heat Treatable- 60 HB
• Optimal for Aluminum & Magnesium, wrought alloy - Heat Treatable- 100 HB
• Optimal for Aluminum & Magnesium, cast alloy ≤12% Si - Non Heat Treatable- 75 HB
• Optimal for Aluminum & Magnesium, cast alloy≤12% Si - Heat Treatable- 90 HB
• Optimal for Copper & Copper alloys (Brass/Bronze) - Free cutting, Pb > 1 -110 HB
• Optimal for Copper & Copper alloys (Brass/Bronze) - Brass (CuZn, CuSnZn)- 90 HB
• Optimal for Copper & Copper alloys (Brass/Bronze) - Bronze (CuSn)- 100 HB
• Optimal for Cast Iron - Chilled- 400 HB

• 90° Three Flute for countersinking/counterboring screw holes
• Made to DIN335 specifications
• Made from M2 High Speed Steel (HSS) offering the best combination of strength, heat & wear resistance
• Bright finish for general purpose applications, non-ferrous metals & plastics