Tools > Drilling > Spotting Drill Bits & Sets | Sutton Tools 142 Carbide Spot Drill Bits | Descriptions | Drills, Carbide, Spotting | Precision drill for machine use | Rigid design for seat position accuracy | Dimensions | d1 (mm): 4 | d2 (mm): 4 | l1 (mm): 55 | l2 (mm): 12 | Pack Quantity: 1 | Features | 90 offers hole chamfering & spotting with the one tool | 142 for spotting, matching a typical carbide drill point | Only drill to the depth of the point | Specifications | Designation: N | Material: VHM | Finish: AlCrN | Shank Form: HA | X: als | Point Tolerance: h6 | Shank Tolerance: h9 | Point Type: 142 Form A | Cutting Edges: ul | Standard: DIN 1897 | Applications | 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 - Non-alloy, cast & free cutting (~ 0.75 %C)- 300 HB | Optimal for Steel - Low alloy & cast | Optimal for Steel - Low alloy & cast | Optimal for Steel - Low alloy & cast | Optimal for Steel - Low alloy & cast | Optimal for Steel - High alloy, cast & tool- 200 HB | Optimal for Steel - High alloy, cast & tool- 325 HB | Optimal for Steel - Corrosion resistant & cast - Ferritic / Martensitic- 200 HB | Optimal for Steel - Corrosion resistant & cast - Martensitic- 240 HB | Optimal for Stainless Steel - Austenitic- 180 HB | Optimal for Stainless Steel - Duplex- 250 HB | Optimal for Stainless Steel - Precipitation Hardening- 250 HB