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Drilling tools

97

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Design: Ultra-finest grain-solid carbide, factory standard, type RT 100 T. TiAlN coated surface, right cutting. Special slot form with double bevels, special point geometry and special point thinning. With inner cooling. Normal angle of rake 30°, core thickness thicker than normal and without core gradient. The drill has a very good self-centring behaviour. Application: For drill holes with very narrow ∅ tolerances and very good surfaces. Suitable for drilling extremely deep holes up to 20 x D with high cutting speeds. Particularly suitable for short-chipping materials such as cast iron, grey cast iron, malleable cast iron and nodular graphite iron and aluminium alloys with a high silicon content. Note: The drills can be sharpened several times. RT 100 T method: • Mill a surface at right angle to the start angle of hole machining. • Produce a cylindrical pilot hole (tolerance F9) with a drilling depth of at least 1 x D. • Insert into the pilot hole with approx. 300 rpm at f = 500 mm/min. • Set the cooling lubricant pressure and speed. • Continual drilling to full drilling depth without relief cycle. • When drilling through holes with oblique exit, reduce the feed rate v f to 40% ca. 1 mm before breaking through. Deep hole drill, 20 x D

• After reaching the drilling depth, switch off the rotation and coolant, extract in rapid traverse. • Conventional coolant lubrication min. 40 bar

Note: The drills can be sharpened several times.

Cutting Tools 1

All deep holes must be piloted before starting to drill. Deep hole drills should never be moved freely in the machine when at the full speed.

Type RT 100 T

Solid carbide

Factory standard

DIN 6535-HA

20xD

135°

3

TiAlN

Steels up to 850 N/mm 2

Steels up to 1000 N/mm 2

Steels up to 1400 N/mm 2

Hard machining over 60 HRC

Ti steels, Ti alloys, special steels

Stainless and acid- resistant steels (INOX)

Steels up to 42 HRC

Steels up to 52 HRC

Steels up to 56 HRC

Steels up to 60 HRC

Copper, brass, bronze

Cast iron materials

Al, Al and Mg alloys

Order No. 1234

110

110

110

80

50

110

100

120

6WHHOV XSWR

6WHHOV XSWR

1234

1234

∅ m7/ h7 mm

∅ m7/ h7 mm

Order No.

Spiral length I 2 mm

Order No.

Spiral length I 2 mm

Shank length I 3 mm

Overall length l 1 mm

Shank ∅ d 2 = h6 mm

Shank length I 3 mm

Overall length l 1 mm

Shank ∅ d 2 = h6 mm

1PP

1PP

f mm/rev

f mm/rev

TiAlN

TiAlN

0300 0350 0400 0450 0500 0550 0600 0650

3.0 238.70 3.5 238.70 ◊ 4.0 253.10 4.5 281.90 ◊ 5.0 288.10 5.5 300.50 6.0 333.40 6.5 362.20

70 36 100 96 36 136 96 36 136 118 36 158 118 36 158 140 36 180 140 36 180 162 36 202

6 0.100 6 0.125 6 0.125 6 0.125 6 0.125 6 0.160 6 0.160 8 0.200

0700 0750 0800 0850 0900 1000 1200 1400

7.0 368.40 7.5 399.30 8.0 432.20 8.5 475.40 9.0 481.60 10.0 481.60 12.0 535.10 14.0 761.50

162 36 202 8 0.200 183 36 223 8 0.200 183 36 223 8 0.200 205 40 249 10 0.250 205 40 249 10 0.250 227 40 271 10 0.250 274 45 323 12 0.250 318 45 367 14 0.315

(W114)

(W114)

Deep hole drill, 25 x D

Design: Ultra-finest grain-solid carbide, factory standard. TiAIN coated surface, right cutting. Special slot form with double bevels, special point geometry and special point thinning. With inner cooling. Normal angle of rake 30°, core thickness thicker than normal and without core gradient. The drill has a very good self-centring behaviour. Application: For drill holes with very narrow ∅ tolerances and very good surfaces. Suitable for drilling extremely deep holes up to 25 x D with high cutting speeds. Particularly suitable for short-chipping materials such as cast iron, grey cast iron, malleable cast iron and nodular graphite iron and aluminium alloys with a high silicon content. Note: The drills can be sharpened several times.

Type RT 100 T

Solid carbide

Factory standard

DIN 6535-HA

25xD

135°

3

TiAlN

Steels up to 850 N/mm 2

Steels up to 1000 N/mm 2

Steels up to 1400 N/mm 2

Hard machining over 60 HRC

Ti steels, Ti alloys, special steels

Stainless and acid- resistant steels (INOX)

Steels up to 42 HRC

Steels up to 52 HRC

Steels up to 56 HRC

Steels up to 60 HRC

Copper, brass, bronze

Cast iron materials

Al, Al and Mg alloys

Order No. 1235

100

100

100

70

50

100

130

110

6WHHOV XSWR

6WHHOV XSWR

1235

1235

∅ m7/ h7 mm

∅ m7/ h7 mm

Order No.

Spiral length I 2 mm

Order No.

Spiral length I 2 mm

Shank length I 3 mm

Overall length l 1 mm

Shank ∅ d 2 = h6 mm

Shank length I 3 mm

Overall length l 1 mm

Shank ∅ d 2 = h6 mm

1PP

1PP

f mm/rev

f mm/rev

TiAlN

TiAlN

0300 0350 0400 0450 0500 0550 0600 0650

3.0 261.40 3.5 261.40 ◊ 4.0 281.90 4.5 316.90 5.0 329.30 5.5 343.70 ◊ 6.0 393.10 6.5 405.40

85 36 125 116 36 156 116 36 156 143 36 183 143 36 183 170 36 210 170 36 210 197 36 237

6 0.100 6 0.125 6 0.125 6 0.125 6 0.125 6 0.160 6 0.160 8 0.200

0700 0750 0800 0850 0900 1000 1200

7.0 413.70 7.5 458.90 ◊ 8.0 500.10 8.5 545.40 ◊ 9.0 607.10 ◊ 10.0 607.10 ◊ 12.0 699.70

197 36 237 8 0.200 223 36 263 8 0.200 223 36 263 8 0.200 250 40 294 10 0.250 250 40 294 10 0.250 277 40 321 10 0.250 337 45 386 12 0.250

(W114)

(W114)

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