Solid carbide chamfering twist

Solid carbide chamfer drill EF-Drill C in STEEL geometry for drilling and chamfering in steel, cast iron and non-ferrous materials.

Product features and benefits:

Economic efficiency thanks to production of drill hole and chamfer in one work step.
Four margins for improved guidance and drill hole quality.
Economic efficiency thanks to variable step lengths in mm increments.

International Material Comparison

Technical details

nominal diameter [in]:: 0.293 "
cold forming tap dimension:: 5/16-24 UNF-2BX, 5/16-24 UNF-3BX, LK-5/16-18-BT, M8-6HX, M8-6HX-LH
nominal diameter d₁ [mm]:: 7.45 mm
shank style:: HA
type:: Step drills
coolant supply:: internal coolant supply
Geometry:: STEEL
number of margins:: 4
Type of construction standard:: similar DIN 6537K
Coating:: TIALN-T14
OAL l₁:: 89 mm
shank diameter d₂:: 10 mm
Flute lenght l₂:: 46 mm
usable length l₃:: 21.13 mm
Clamping length l₄:: 40 mm
Step length lₛ:: 19 mm
Center length l₅:: 1.357 mm
step diameter 1:: 9 mm
tool - sense of rotation:: right hand
angle step 1:: 90 deg
tolerance work piece:: IT8-IT10
point angle:: 140 deg
cutting tolerance:: m7
shank diameter tolerance:: h6
cutting material:: carbide

nominal diameter [in]

0.293 "

cold forming tap dimension

5/16-24 UNF-2BX, 5/16-24 UNF-3BX, LK-5/16-18-BT, M8-6HX, M8-6HX-LH

nominal diameter d₁ [mm]

7.45 mm

shank style

type

Step drills

coolant supply

internal coolant supply

Geometry

STEEL

number of margins

Type of construction standard

similar DIN 6537K

Coating

TIALN-T14

OAL l₁

89 mm

shank diameter d₂

10 mm

Flute lenght l₂

46 mm

usable length l₃

21.13 mm

Clamping length l₄

40 mm

Step length lₛ

19 mm

Center length l₅

1.357 mm

step diameter 1

9 mm

tool - sense of rotation

right hand

angle step 1

90 deg

tolerance work piece

IT8-IT10

point angle

140 deg

cutting tolerance

shank diameter tolerance

cutting material

carbide

Material	Steel materials Search for value P1.1 Cold-extrusion steels, Construction steels, Free-cutting steels, etc. <= 600 N/mm² P2.1 Construction steels, Cementation steels, Steel castings, etc. <= 800 N/mm² P3.1 Cementation steels, Heat-treatable steels, Cold work steels, etc. <= 1000 N/mm² P4.1 Heat-treatable steels, Cold work steels, Nitriding steels, etc. <= 1200 N/mm² P5.1 High-alloyed steels, Cold work steels, Hot work steels, etc. <= 1400 N/mm² No results found Stainless steel materials Search for value M1.1 Ferritic, martensitic <= 950 N/mm² No results found Cast materials Search for value K1.1 Cast iron with lamellar graphite (GJL) 100-250 N/mm² K1.2 Cast iron with lamellar graphite (GJL) 250-450 N/mm² K2.1 Cast iron with nodular graphite (GJS) 350-500 N/mm² K2.2 Cast iron with nodular graphite (GJS) 500-900 N/mm² K3.1 Cast iron with vermicular graphite (GJV) 300-400 N/mm² K3.2 Cast iron with vermicular graphite (GJV) 400-500 N/mm² K4.1 Malleable cast iron (GTMW, GTMB) 250-500 N/mm² K4.2 Malleable cast iron (GTMW, GTMB) 500-800 N/mm² No results found Non ferrous materials Search for value N1.1 Aluminium wrought alloys <= 200 N/mm² N1.2 Aluminium wrought alloys <= 350 N/mm² N1.3 Aluminium wrought alloys <= 550 N/mm² N1.4 Aluminium cast alloys Si <= 7% N1.5 Aluminium cast alloys 7% < Si <= 12% N2.1 Pure copper, low-alloyed copper <= 400 N/mm² N2.2 Copper-zinc alloys (brass, long-chipping) <= 550 N/mm² N2.3 Copper-zinc alloys (brass, short-chipping) <= 550 N/mm² N2.4 Copper-aluminium alloys (alu bronze, long-chipping) <= 800 N/mm² N2.5 Copper-tin alloys (tin bronze, long-chipping) <= 700 N/mm² N2.6 Copper-tin alloys (tin bronze, short-chipping) <= 400 N/mm² N2.7 Special copper alloys <= 600 N/mm² N2.8 Special copper alloys <= 1400 N/mm² No results found Hard materials Search for value H1.1 High strength steels, hardened steels, hard castings 44 – 50 HRC H1.2 High strength steels, hardened steels, hard castings 50 – 55 HRC No results found

Unit	Millimeter Inch

VHM-EF-Drill C-STEEL-HA-IK-4FF-TIALN-T14

Product features and benefits:

Accessories

EF-hydraulic expansion chuck HSK-A63

EF-hydraulic expansion chuck SK40 Form AD/B

EF-hydraulic expansion chuck SK50 Form AD/B