Description
44CD40-R08-H80 – Microbore Short Hole Drills for 80° Inserts
Drill Code Number: 44CD40-R08-H80
DØ: 44
Shank Ø: 40
L1: 70
L2: 184
L3 Max: 132
T: R1/4
Insert: WCGT 08 04 12_ _
Left-hand drills and other sizes will be quoted on request.
Spares
Insert: WCGT 08 04 _ _
Insert Screw: RS4095
Insert Screw Driver: R77D
Coolant Blanking: R1/4 – BR250
Cutting Data for Short Hole Drills | |||||||||
Feed Rate MM per Rev Diameter Range | Cutting Speed Metres per Minute | Power Factor Pf | |||||||
Material | H.B | Ø16-25 | Ø26-35 | Ø36-45 | Ø46-55 | Un-Coated | Coated | ||
Carbon Steel | Low | 125 | 0.05-0.13 | 0.08-0.15 | 0.10-0.25 | 0.13-0.30 | 12-185 | 170-290 | 0.040 |
Med | 150 | ||||||||
High | 200 | ||||||||
Alloy Steel | 180 | 0.05-0.20 | 0.08-0.25 | 0.10-0.25 | 0.15-0.30 | 90-140 | 150-275 | 0.045 | |
275 | |||||||||
300 | |||||||||
350 | |||||||||
Stainless Steel | 175 | 0.08-0.13 | 0.10-0.20 | 0.13-0.25 | 0.15-0.30 | 90-260 | 105-260 | 0.052 | |
200 | |||||||||
Cast Steel | 180 | 0.05-0.18 | 0.10-0.20 | 0.13-0.25 | 0.15-0.30 | 80-170 | 105-230 | 0.034 | |
200 | |||||||||
225 | |||||||||
Malleable Iron | 130 | 0.08-0.13 | 0.13-0.25 | 0.15-0.30 | 0.18-0.35 | 90-150 | 120-230 | 0.030 | |
230 | |||||||||
Cast Iron | 180 | 0.08-0.20 | 0.13-0.25 | 0.15-0.30 | 0.18-0.35 | 90-140 | 105-200 | 0.025 | |
260 | |||||||||
Nodular SG Iron | 160 | 0.10-0.20 | 0.13-0.25 | 0.15-0.30 | 0.2-0.35 | 90-150 | 120-230 | 0.032 | |
250 | |||||||||
Aluminium | 60 | 0.05-0.13 | 0.08-0.15 | 0.10-0.18 | 0.13-0.20 | 180-350 | 240-520 | 0.013 | |
Cast Alloy | 75 | 0.05-0.13 | 0.08-0.15 | 0.10-0.23 | 0.13-0.30 | 165-275 | 240-455 | 0.013 | |
Brass | 90 | 0.05-0.13 | 0.08-0.15 | 0.10-0.18 | 0.13-0.20 | 90-240 | 150-365 | 0.014 | |
Bronze | 100 | 0.05-0.13 | 0.08-0.15 | 0.10-0.18 | 0.13-0.20 | 75-215 | 120-305 | 0.020 | |
Note: The above figures are average and only applicable when drilling is performed on a machine with adequate power and rigidity together with the necessary coolant flow and pressure.
CAUTION – On through hole operations a disc is produced on exit. With a rotating work piece this can be projected with considerable velocity. Care must be taken to provide adequate guarding.
Price on Application – Please email (sales@microbore.co.uk) or call the office (0044(0)24 76 373355) for details.
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