Hand Drilling, Countersinking & Spotfacing

RB 306 Microstop Cage

Stroke 7.5mm | 0.03in

Cutter Thread M8 X 1

A diagram showing a basic drill cage and various mounting bases with small and large windows for surgical applications.
  • Different mounting bases available.
  • This cage has been designed for use with cutters greater than 0.394” dia.
  • For special composites mounting base with vacuum
  • Cemented, hardened and ground chrome-nickel steel spindle mounted on a self lubrificating bronze body and a thrust bearing.
  • Centring-cone of the cutter (120°) for perfect concentricity.
  • Microstop depth adjustment (1 scale division = .001”).
  • Microstop depth setting is held securely in place by locknut with seal. This patented feature allows an easy loosening of the lock-nut without damage to the drill cage.
MODEL INPUT STYLE SHANK CUTTER THREAD STROKE VACUUM MOUNTING
BASE STYLE		 WINDOW
SIZE		 NOSE INSERT
STYLE		 DIAMETER
MAX		 OVERALL
LENGTH		 WEIGHT
IN MM MM MM MAX
MM		 MIN
MM		 G
10025105W FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M30M LARGE HARD CHROME 28 98 91 185
10025105 FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M30M SMALL HARD CHROME 28 98 91 185
RC-10025010W FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M26M LARGE HARD CHROME 28 98 91 185
RC-10025010 FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M26M SMALL HARD CHROME 28 98 91 185
10025110W FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M30M LARGE NYLON 28 98 91 185
10025110 FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M30M SMALL NYLON 28 98 91 185
RC-10025015W FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M26M LARGE NYLON 28 98 91 185
RC-10025015 FIXED SHANK 0.236 6.0 M8 X 1 7.5 NO M26M SMALL NYLON 28 98 91 185
10025117W FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M30M LARGE HARD CHROME 28 98 91 185
10025117 FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M30M SMALL HARD CHROME 28 98 91 185
10025001W FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M26M LARGE HARD CHROME 28 98 91 185
10025001 FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M26M SMALL HARD CHROME 28 98 91 185
10025111W FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M30M LARGE NYLON 28 98 91 185
10025111 FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M30M SMALL NYLON 28 98 91 185
10025016W FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M26M LARGE NYLON 28 98 91 185
10025016 FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M26M SMALL NYLON 28 98 91 185
10025116W FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M30M LARGE ROTARY CELORON 28 98 91 185
10025116 FIXED SHANK 0.236 6.0 M8 X 1 7.5 YES M30M SMALL ROTARY CELORON 28 98 91 185
* High Resolution cages with 0.0001" are available.

Microstop Cage Parts

REFERENCE INDEX QTY DESCRIPTION
90505020 1 1 BODY
90025035PT 2 1 SPINDLE
90205280 3 1 BRONZE BUSHING
93430045 4 1 SPRING
90280015 5 1 THRUST BEARING
90245130 6 20 BALL 2.5 MM DIA
90280020 7 1 THRUST BEARING
90013029 8 1 CIRCLIPS
90495015 9 1 LOCK NUT ASSEMBLY
93430015 10 1 SPRING
94215015 11 1 VERNIER ASSEMBLY
90815090 12 1 THREADED MOUNTING BASE
90815090W 12B 1 THREADED MOUNTING BASE LARGE WINDOW
90825050 13 1 HARD CHROME STEEL NOSE
90825055 14 1 NYLON NOSE PIECE
90815095 15 1 THREADED MOUNTING BASE
90815095W 15B 1 THREADED MOUNTING BASE LARGE WINDOW
90825080 16 1 HARD CHROME STEEL NOSE
90825085 17 1 NYLON NOSE PIECE
90815093 18 1 THREADED MOUNTING BASE WITH VACUUM
90815093W 18B 1 THREADED MOUNTING BASE LARGE WINDOW WITH VACUUM
90815098 19 1 THREADED MOUNTING BASE WITH VACUUM
90815098W 19B 1 THREADED MOUNTING BASE LARGE WINDOW WITH VACUUM
90825090 20 1 ROTARY NOSE PIECE
Technical engineering drawing of window components with sectional views, dimensions, and specifications.
RB306 Small Window Microstop Cage

Technical Data

Shank: Ø 6mm | 0.236in dia Weight: 175 - 185 g
Cutter thread: M8 X 1 Overall length maxi: 98mm | 3.85in
Stroke: 7.5mm | 0.3in Overall length mini: 91mm | 3.25in
Ext. Maxi: Ø 28mm | 1.1in dia