Tolsen Door Lock Installation Kit. Tolsen's Door Lock Installation Kit takes the hassle out of deadlock and lockset installation. Size of the drill: 6x76mm. The installation kit can be adjusted to fit doors with a thickness of 35- 45mm (1-3/8" to 1-3/4"), with the depth of the larger holes adjustable up to 60-70mm (2-3/8" to 2-3/4").
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