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On request all our cutter attachments can be 1/4” - 28 thread.
RB 356 HP 21 & RB 356 HP 38
M6 x 1 Metric
Bulk:
RB 356 HP 21
Tool attachment: M6 x 1
Stroke: 21 mm ‑ .826”
Body off: Ø 27 mm ‑ 1.063” dia.
Overall length: maxi: 136 mm ‑ 5.354”
mini: 116 mm ‑ 4.567”
Weight: 300 g.
RB 356 HP 38
Tool attachment: M6 x 1
Stroke: 38 mm ‑ 1.500”
Body off: Ø 27 mm ‑ 1.063” dia.
Overall length: maxi: 183 mm ‑ 7.204”
mini: 168 mm ‑ 6.614”
Weight: 375 g.
Advantages:
n Mounted on three needle bearings, this high precision drill‑cage
ensures perfect concentricity.
n Removable adaptor with two possibilities of use:
A.‑Chuck‑clamping of the straight shank with three wrench flats,
B.‑Direct fitting on the spindle without using the drill chuck.
This gives perfect concentricity and noticeably reduces the
length and weight of the drill and tool assembly.
Results are higher performance, improved machining and much
less fatigue for the operator.
n Cemented, hardened and ground chrome‑nickel steel spindle
mounted on three needle bearings and a ball thrust bearing.
Body of specially treated chrome steel.
n Ground centring‑cone of the cutter (120°) for perfect
concentricity.
n Microstop depth adjustment: (1 scale division = .001”).
n Safety locking ensured by a locknut equipped with a seal.
This patented feature allows an easy loosening of the locknut
without damage to the drill‑cage.
For Use With Cutters of M6 x 1
Ground Thread
Microstop Drill‑Cage for Drilling, Reaming & Countersinking
RB 356 HP 21 & RB 356 HP Metric
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