Technical +44 (0) 114 221 2510 +44 (0) 114 221 2563 info@rotabroach.co.uk
Rotabroach UK have over 30 years experience manufacturing and supplying magnetic drills, magnetic drill cutters and rail drilling machines to over 35 countries worldwide. Rotabroach have a long established history of quality and reliability. The unique geometry of Rotabroach annular cutters ensures hole drilling efficiency, reliability, durability and above all, accuracy.

Rotabroach have enthusiastic and knowledgeable distributors who enable customers to receive quality products backed up by excellent service. Our rapid response and delivery of orders from an extensive stock has earned the reputation accorded to the Rotabroach brand.


Rotabroach – The original name for hole cutting systems.
A Division of A member of OSL Group of Companies

Rotabroach Speeds and Feeds

The data listed below is for reference purposes only, and indicate potential starting conditions. It is the responsibility of the site operation manager to determine correct application requirements.

Cutting surface
speed Meters/min		 Cutter diameter/Material/RPM relationship
13 14 18 22 30 50 65
Material to be cut Lower - Upper L U L U L U L U L U L U L U
Aluminium 60 - 90 1469 2203 1364 2046 1061 1591 868 1302 637 955 382 573 294 441
Brass & Bronze 40 - 50 979 1224 909 1137 707 884 579 723 424 530 255 318 196 245
Iron: cast(soft) 30 - 50 734 1224 682 1137 530 884 434 723 318 530 191 318 147 245
cast(hard) 15 - 21 367 514 341 477 265 371 217 304 159 223 95 134 73 103
cast(malleable) 15 - 30 367 734 341 682 265 530 217 434 159 318 95 191 73 147
Steel: mild 24 - 30 588 734 546 682 424 530 347 434 255 318 153 191 118 147
high tensile 3 - 5 73 122 68 114 53 88 43 72 32 53 19 32 15 24
stainless (free cutting) 15 - 18 367 441 341 409 265 318 217 260 159 191 95 115 73 88
stainless (heat resisting) 6 - 13 26 318 136 296 106 230 87 188 64 138 38 83 29 64