They’re used for reaming bushings to a precise fit when the size needs to be determined during assembly. Blades can be reground and replaced. To measure size, adjust blades to a known size (such as a bushing or ring), or measure across two opposite blades with a micrometer.
Nos. | Adjustable Range | Overall Length | Blade Length |
10A | 5.56 – 5.9mm | 72mm | 27mm |
9A | 5.95 – 6.35mm | 77mm | 30mm |
8A | 6.35 – 7.15mm | 83mm | 35mm |
7A | 7.15 – 7.95mm | 91mm | 35mm |
6A | 7.95 – 8.70mm | 107mm | 38mm |
5A | 8.70 – 9.50mm | 112mm | 38mm |
4A | 9.50 – 10.25mm | 121mm | 38mm |
3A | 10.25 – 11mm | 127mm | 38mm |
2A | 11- 12mm | 134mm | 42mm |
A | 12 – 13.5mm | 141mm | 42mm |
B | 13.5 – 15mm | 146mm | 45mm |
C | 15 – 16.75mm | 166mm | 53mm |
D | 16.75 – 18.25mm | 172mm | 56mm |
E | 18.25 – 19.75mm | 178mm | 64mm |
F | 19.75 – 21.5mm | 188mm | 67mm |
G | 21.5 – 23.75mm | 204mm | 76mm |
H | 23.75 – 27mm | 230mm | 83mm |
I | 27 – 30.25mm | 254mm | 86mm |
J | 30.25 – 34.25mm | 280mm | 98mm |
K | 34.25 – 38mm | 305mm | 109mm |
L | 38 – 46mm | 356mm | 113mm |
M | 46 – 56mm | 407mm | 128mm |
N | 56 – 70mm | 457mm | 124mm |