Hafco Metalmaster HM-32B, Instruction Manual, Page: 21 / 23

Total 2
ACCURACY TEST FOR
MILLING & DRILLING MACHINE
P1
No. Checking items Tolerance Error tested
G1 The flatness of worktable surface 0.025 for
any tesred
length 200
Max 0.08
G2
Squareness of worktable longitudinal movement to
cross movement
0.04/300
G3 Parallelism of worktable longitudinal movement to
the base T-slot
0.05
G4 Ran-out of spindle hole center line a)Near spindle
nose 0.015
b)At a distance
of 100 form
spindle nose
0.02