Catalog FORMAT plus 2017 - 2018

Drilling tools

63

Counterbore with Morse taper Shank

Design: HSS, DIN 343, type N. Profile grinding, steam tempered surface, right cutting. Normal angle of rake, normal core thickness and without core gradient. The spiral length is longer than the height of the bushes. Application: For drilling out pre-drilled, pre-cast or pre-punched holes. The sturdy construction and 3 blades means that alignment inaccuracies and runouts in pre-drilled holes are corrected. Furthermore, the drill wall surface is improved so that a reamer can be subsequently used for perfect final reaming. Please pay attention to the column "smallest ∅ of pre-drilled hole". Note: The cut diameter must be smaller than the hole to be drilled out. Further dimensions or HSS-E designs or VHM/HM assembly or long flute counter bores according to DIN 1864 available on request.

DIN 343

Type N

Z 3

HSS

MK 1–3

120°

Cutting Tools 1

22°

steam

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. 1085

30

25

10

25

45

1085

∅ h8

Order No.

Spiral length

Total length

Smallest ∅ of pre-drilled hole mm

MK

mm

mm 75 81 87 87 94 94 101 101 101 101 108 108 114 114 120 120 125 125 130 130 135 135 140 140 145 145 150 150 155 155 160 160 160 160 165 165 170 170 170 170 175 175 175 175

mm 156 162 168 168 175 175 182 182 182 182 189 189 212 212 218 218 223 223 228 228 233 233 238 238 243 243 248 248 253 253 281 281 281 281 286 286 291 291 291 291 296 296 296 296

steam

0780 0880 0980 1000 1075 1100 1175 1200 1275 1300 1375 1400 1475 1500 1575 1600 1675 1700 1775 1800 1870 1900 1970 2000 2070 2100 2170 2200 2270 2300 2370 2400 2470 2500 2570 2600 2670 2700 2770 2800 2870 2900 2970 3000

7.80 8.80 9.80 10.00 10.75 11.00 11.75 12.00 12.75 13.00 13.75 14.00 14.75 15.00 15.75 16.00 16.75 17.00 17.75 18.00 18.70 19.00 19.70 20.00 20.70 21.00 21.70 22.00 22.70 23.00 23.70 24.00 24.70 25.00 25.70 26.00 26.70 27.00 27.70 28.00 28.70 29.00 29.70 30.00

38.90

5.6 6.3 7.0 7.0 7.7 7.7 8.4 8.4 9.1 9.1 9.8 9.8 10.5 10.5 11.2 11.2 11.9 11.9 12.6 12.6 13.3 13.3 14.0 14.0 14.6 14.6 15.3 15.3 16.0 16.0 16.6 16.6 17.3 17.3 18.0 18.0 18.6 18.6 19.3 19.3 20.0 20.0 20.5 20.5

1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3

56.90 ◊

41.10 50.40

61.20 ◊

45.40 46.10 43.20 53.30 47.50 53.30 48.20 62.00 54.00 56.90 55.40 68.50 59.10 64.80 60.50 72.70 63.40 67.70 59.80 85.00 85.00 79.20 89.30 84.30

79.20 ◊

96.50 ◊

92.20

100.00

87.80

102.50 ◊

99.40

152.50 ◊

119.00

123.00 ◊

109.00

148.50 ◊

132.50 125.50 132.00 (W109)

1/45

Articles marked ◊ are not held in stock, procurement is effected at short notice.