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Bimetal hole saws

551

TECHNICAL FEATURES:
Perfect round back plate.
• ​​​​​​​Fast & easy center drill change.
• ​​​​​​​Thick steel body.
 
Bimetal Plus 8% Cobalt
Premium bi-metal with 8% cobalt provides Xtreme results in performance and up to 50% longer lifetime than the competition.
 
Tooth design
Special tooth geometry with regular pitch provides a smoother cut and better chip clearance preventing clogging and heat build-up. Teeth are alternate & side set to minimize binding and friction, requiring less feed pressure.
Application
Materials:
  • Metals (up to 1000 N/mm2 strenght).
  • Mild steel.
  • Stainless steel.
  • Non-ferrous metals, aluminium.
  • Sandwich materials.
  • Cast Iron.
  • Copper, zinc, brass.
 
Speed kills!
Operating at higher speeds than those recommended will shorten hole saw life and produce very inefficient cutting.
 
Feed pressure:
variables in material, work configuration should be considered. Apply sufficient feed pressure to aid good chip removal. Reduce the pressure when hole saw becomes hot or if teeth start to clog with material. Insufficient feed pressure will dull tooth points prematurely, but too much pressure can totally destroy teeth.Operating at higher speeds than those recommended will shorten hole saw life and produce very inefficient cutting.
 
Cooling lubricant:
Cutting oil serves several purposes when sawing in metals. It cools saw and workpiece, reduces heat and abrasion, which can shorten cutting lef, also aids removing sward from the cutting surface.Using a cooling lubricant will extend your hole saw life by 500%.
 
Percussion/hammer action mode must be turned off when using these hole saws.


 

Order No.
Metal RPM
Stainless Steel RPM 
Cast Iron RPM
Aluminium RPM

551-016

550 270 370 800

551-019

470 230 310 670

551-020

440 220 290 640

551-022

400 200 270 580

551-025

350 170 230 510

551-027

330 160 220 470

551-029

310 150 200 470

551-030

300 140 190 430

550-040

800 680 680 320

551-032

280 140 180 400

551-035

250 120 170 370

551-038

230 110 150 340

551-043

210 100 140 300

551-044

200 100 130 290

551-048

180 90 120 270

551-051

170 85 110 25

551-054

160 80 110 240

551-057

160 75 100 220

551-060

150 70 95 210

551-064

140 70 90 205

551-068

130 65 80 185

551-070

130 60 80 185

551-073

120 60 80 180

551-076

120 55 75 170

551-079

110 55 70 165

551-083

105 50 70 155

551-086

105 50 65 150

551-089

100 50 65 145

551-092

95 45 60 140

551-102

85 45 55 130

551-108

80 40 55 120

551-127

70 35 45 90

551-133

65 35 45 90

551-140

65 30 40 85

551-168

55 25 35 75
         
Cooling
lubricant

Cutting oil

Cutting oil Dry cut

Turpentine



 

 

Variations
Filter
Item Code D H S MAT RH-LH
551-016
5/8'' 1-1/2'' HEX BIM RH
551-019
3/4'' 1-1/2'' HEX BIM RH
551-020
13/16'' 1-1/2'' HEX BIM RH
551-022
7/8'' 1-1/2'' HEX BIM RH
551-025
1'' 1-1/2'' HEX BIM RH
551-027
1-1/16'' 1-1/2'' HEX BIM RH
551-029
1-1/8'' 1-1/2'' HEX BIM RH
551-030
1-3/16'' 1-1/2'' HEX BIM RH
551-032
1-1/4'' 1-1/2'' HEX BIM RH
551-035
1-3/8'' 1-1/2'' HEX BIM RH
551-038
1-1/2'' 1-1/2'' HEX BIM RH
551-040
1-9/16'' 1-1/2'' HEX BIM RH
551-043
1-11/16'' 1-1/2'' HEX BIM RH
551-044
1-3/4'' 1-1/2'' HEX BIM RH
551-048
1-7/8'' 1-1/2'' HEX BIM RH
551-051
2'' 1-1/2'' HEX BIM RH
551-052
2-1/16'' 1-1/2'' HEX BIM RH
551-054
2-1/8'' 1-1/2'' HEX BIM RH
551-057
2-1/4'' 1-1/2'' HEX BIM RH
551-060
2-3/8'' 1-1/2'' HEX BIM RH
551-064
2-1/2'' 1-1/2'' HEX BIM RH
551-065
2-9/16'' 1-1/2'' HEX BIM RH
551-068
2-11/16'' 1-1/2'' HEX BIM RH
551-070
2-3/4'' 1-1/2'' HEX BIM RH
551-073
2-7/8'' 1-1/2'' HEX BIM RH
551-076
3'' 1-1/2'' HEX BIM RH
551-079
3-1/8'' 1-1/2'' HEX BIM RH
551-083
3-1/4'' 1-1/2'' HEX BIM RH
551-086
3-3/8'' 1-1/2'' HEX BIM RH
551-089
3-1/2'' 1-1/2'' HEX BIM RH
551-092
3-5/8'' 1-1/2'' HEX BIM RH
551-102
4'' 1-1/2'' HEX BIM RH
551-105
4-1/8'' 1-1/2'' HEX BIM RH
551-108
4-1/4'' 1-1/2'' HEX BIM RH
551-114
4-1/2'' 1-1/2'' HEX BIM RH
551-127
5'' 1-1/2'' HEX BIM RH
551-133
5-1/4'' 1-1/2'' HEX BIM RH
551-140
5-1/2'' 1-1/2'' HEX BIM RH
551-152
6'' 1-1/2'' HEX BIM RH
551-168
6-5/8'' 1-1/2'' HEX BIM RH
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