Tools > Drilling > Jobber Drill Bits & Sets > Jobber Drill Bits | Sutton Tools Jobber Drill Bits - R40 UNI | Descriptions | SPM offers superior performance | Suitable for production drilling as an alternative to carbide drills | Suitable for materials up to 1500N/mm2 | Dimensions | d1 (mm): 7.1 | d2 (mm): 8 | l1 (mm): 109 | l2 (mm): 69 | Pack Quantity: 1 | Features | Point geometry ensures high strength & short chips | Endmill shank for greater accuracy | TiAlN for longer tool life | Specifications | Designation: UNI | Material: SPM | Finish: TiAIN | Maximum Cut Depth: 5XD | Shank Form: A | Helix Angle: R40 | X: als | Point Tolerance: h8 | Shank Tolerance: h7 | Point Type: 130 4 Facet Form B | Cutting Edges: ul | Standard: DIN 338 | Applications | Steel - Non-alloy, cast & free cutting, (~ 0.15 %C)- 125 HB;(~ 0.45 %C)- 190 HB;(~ 0.45 %C)- 250 HB;(~ 0.75 %C)- 270 HB;(~ 0.75 %C)- 300 HB | Low alloy & cast | High alloy, cast & tool- 200 HB | Ferritic / Martensitic- 200 HB | Martensitic- 240 HB | Stainless Steel Precipitation Hardening- 250 HB | Cast Iron | Ferritic/Pearlitic- 180 HB | Pearlitic- 260 HB | Nodular Ferritic- 160 HB | Pearlitic Ferritic- 250 HB | Ferritic- 130 HB | Malleable Pearlitic- 230 HB | Al & Mg, cast alloy 12% Si Non Heat Treatable | 75 HB | 90 HB | Al & Mg, cast alloy >12% Si Heat Treatable- 130 HB | Cu & Cu alloys | Brass - 90 HB | Bronze - 100 HB | Cast Iron Chilled- 400 HB