.750 & 1.000 Diameter Drill Mill Twin Long Edge

2 Effective Center Cutting Long Edge End Mills

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  • - 2 Flutes Effective when Milling or Counterboring
  • - Center cutting
  • - Cuts a flat bottom within .001
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Tool Info.
.750 & 1.000 Dia.
Tool # D L L-1 B LOC S Insert Screw Wrench Center Insert Screw Wrench
DMTL-750 .750 3.000 1.000 .215 .700 .750 (3) SPEB-222P 314T T-8 (1) SPEB-322P 414T T-10
DMTL-100 1.000 3.750 1.500 .280 .900 1.000 (3) SPEB-2522P 314T T-8 (1) SPEB-422PA 638T T-15

Note: DMTL's are to be run as 1 flute effective at depths more than "B" dimension

Insert Info.

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Insert Info.
.750 & 1.000 Dia. Drill Mill Twin Long Edge
Insert # I.C. T R Grades
SPEB-222P .250 .125 .031 X33 / B1M / X40 / C55
SPEB-2522P .312 .125 .031 X33 / X40
SPEB-322P .375 .125 .031 X33 / B1M / X40 / C55
SPEB-422PA .500 .125 .031 X33 / X40

Technical Data

Speed and Feed Info.
Drill Mill Twin Long Edge
Material S.F.M. Drilling
I.P.R.
Milling
I.P.R.
Mild & Low Carbon Steel
Ex. 1018, 1020, 1117, 1141, 12L14
400 - 800 .002 - .004 .002 - .005
High Carbon & Alloy Steel
Ex. 1045, 4140, 4340, 52100, 8620
300 - 500 .002 - .003 .002 - .004
Lower Carbon Tool Steel
Ex. P-20, H-13, S-7
300 - 500 .002 - .003 .002 - .004
Tool Steel
Ex. A-2, A-6, D-2, M-2
300 - 500 .001 - .003 .001 - .004
Stainless Steel
Ex. 304, 316, 420, 15-5PH, 17-4PH
300 - 500 .001 - .003 .001 - .003
Iron
Ex. Cast, Ductile, Nodular
400 - 800 .002 - .005 .002 - .006
Nickel & Titanium Alloy
Ex. Inconel, Hastelloy, TI-6AL-4V
100 - 200 .001 - .002 .001 - .002
Non-Ferrous Metal
Ex. Aluminum, Bronze, Brass
800 - 1200 .003 - .006 .003 - .008
Insert Grade Selection
.750 & 1.000 Dia. Drill Mill Twin Long Edge
Material Material Examples Preferred Grade
Mild & Low Carbon Steels 1018, 1020, 1117, 1141, 12L14 X33
High Carbon & Alloy Steels 1045, 4140, 4340, 52100, 8620 X33
Lower Carbon Tool Steels P-20, H-13, S-7 X33
Tool Steels A-2, A-6, D-2, M-2 X33
Stainless Steels 303, 304, 316, 420, 15-5PH, 17-4PH X33
Iron Cast, Nodular C55 / X33
Iron Ductile X33
Nickel & Titanium Alloys Inconel, Hastelloy, TI-6AL-4V X33
Non-Ferrous Metals Aluminum, Bronze, Brass X40 / B1M / X33
Insert Grade Description
.750 & 1.000 Dia. Drill Mill Twin Long Edge
Grade Description
B1M Uncoated Carbide - No Hone
C55 Multi-Layer Power Nitride Coating
X33 High Performance Nitride Coating
X40 Extremely Smooth Boride Coating
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