# Speed

A split gear can be set in two different positions in relation to the motor housing of the drill. By turning the split gear 180 degrees you can change the speed, as shown in the figure below. For further information, please see section “Changing the speed”.

Markings on the split gear housing indicate ratios. The markings, on the split gear housing closest to the motor housing of the drill, indicate the actual ratio. See the figure below.

The combination of motor housing, split gear and head determines the speed of the drill spindle. Select from the available combinations of motor housings, split gears and heads in the table below to get the desired RPM.

| Motor housing | Split gear | Head
--- | --- | --- | ---
RPM | Ordering No. | Ordering No. | Ordering No.
220 | 4141 0888 90 | 4141 0432 94 | 4141 0401 92
350 | 4141 0452 93 | 4141 0432 94 | 4141 0401 92
430 | 4141 0452 93 | 4141 0432 95 | 4141 0401 92
520 | 4141 0452 93 | 4141 0432 91 | 4141 0401 92
700 | 4141 0452 93 | 4141 0432 92 | 4141 0401 92
930 | 4141 0452 93 | 4141 0432 93 | 4141 0401 92
1200 | 4141 0452 93 | 4141 0432 93 | 4141 0401 92
1600 | 4141 0452 93 | 4141 0432 92 | 4141 0401 92
2200 | 4141 0452 93 | 4141 0432 91 | 4141 0401 92
2600 | 4141 0452 93 | 4141 0432 95 | 4141 0401 92
3200 | 4141 0452 93 | 4141 0432 94 | 4141 0401 92
4200 | 4141 0452 94 | 4141 0432 92 | 4141 0401 93
5500 | 4141 0452 94 | 4141 0432 93 | 4141 0401 93
7300 | 4141 0452 94 | 4141 0432 93 | 4141 0401 93