Hand Drilling, Countersinking & Spotfacing

RB(I) 307 Microstop Cage

Stroke 7mm | 0.3in

Cutter Thread M8 X 1 or 1/2”-28

Diagram showing various firearm suppressor parts, including basic trilug adapter and nozzle end pieces. There are configurations with large and small window designs, with different shapes and openings.

Different mounting bases available.
Reduced dimensions for tight access areas.
For special composites mounting base with vacuum.
High precision microstop cage, body in heat treated chrome steel, fully ground throughout. This ball mounted microstop cage includes two needle bearings for best utilisation.
When using the RB 307, any misalignment of the microstop cage is corrected by the unique ball pivoting spindle. This assembly ensures perpendicularity throughout the operation at all time.
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
            

        10020160W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	LARGE	HARD CHROME	29	98	88	165
10020160	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	SMALL	HARD CHROME	29	98	88	165
10020065W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	LARGE	HARD CHROME	29	98	88	165
10020065	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	SMALL	HARD CHROME	29	98	88	165
10020070W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	LARGE	NYLON	29	98	88	165
10020070	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	SMALL	NYLON	29	98	88	165
10020060W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	LARGE	ROTARY CELERON	29	98	88	165
10020060	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	SMALL	ROTARY CELERON	29	98	88	165
10020155W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	LARGE	ROTARY CELERON	29	98	88	165
10020155	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	SMALL	ROTARY CELERON	29	98	88	165
10020250W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	3 NYLON PADS	LARGE	NONE	29	98	88	165
10020250	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	3 NYLON PADS	SMALL	NONE	29	98	88	165
10020165W	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	LARGE	NYLON	29	98	88	165
10020165	BALL PIVOT	0.236	6.0	1/4"-28	7	NO	M19F AND M26M	SMALL	NYLON	29	98	88	165
10020166W	BALL PIVOT	0.236	6.0	1/4"-28	7	YES	M19F AND M26M	LARGE	NYLON	29	98	88	165
10020166	BALL PIVOT	0.236	6.0	1/4"-28	7	YES	M19F AND M26M	SMALL	NYLON	29	98	88	165
10020110W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	LARGE	HARD CHROME	29	98	88	165
10020110	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	SMALL	HARD CHROME	29	98	88	165
10020015W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	LARGE	HARD CHROME	29	98	88	165
10020015	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	SMALL	HARD CHROME	29	98	88	165
10020020W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	LARGE	NYLON	29	98	88	165
10020020	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	SMALL	NYLON	29	98	88	165
10020115W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M30M	LARGE	NYLON	29	98	88	165
10020115	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M30M	SMALL	NYLON	29	98	88	165
10020010W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	LARGE	ROTARY CELERON	29	98	88	165
10020010	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	SMALL	ROTARY CELERON	29	98	88	165
10020105W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	LARGE	ROTARY CELERON	29	98	88	165
10020105	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	M19F AND M26M	SMALL	ROTARY CELERON	29	98	88	165
10020200W	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	3 NYLON PADS	LARGE	NONE	29	98	88	165
10020200	BALL PIVOT	0.236	6.0	M8 X 1	7	NO	3 NYLON PADS	SMALL	NONE	29	98	88	165
1002001W	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	LARGE	HARD CHROME	29	98	88	165
1002001	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	SMALL	HARD CHROME	29	98	88	165
10020111W	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	LARGE	HARD CHROME	29	98	88	165
10020111	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	SMALL	HARD CHROME	29	98	88	165
10020021W	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	LARGE	NYLON	29	98	88	165
10020021	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	SMALL	NYLON	29	98	88	165
10020116W	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M30M	LARGE	NYLON	29	98	88	165
10020116	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M30M	SMALL	NYLON	29	98	88	165
10020001W	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	LARGE	ROTARY CELERON	29	98	88	165
10020001	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	SMALL	ROTARY CELERON	29	98	88	165
10020106W	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	LARGE	ROTARY CELERON	29	98	88	165
10020106	BALL PIVOT	0.236	6.0	M8 X 1	7	YES	M19F AND M26M	SMALL	ROTARY CELERON	29	98	88	165

                * High Resolution cages with 0.0001" are available.
            

    

Microstop Cage Parts

    
        
                REFERENCE
                INDEX
                QTY
                DESCRIPTION
            

        90025030	1	1	SPINDLE
91015010	2	1	RB 307 SLEEVE
91015006	2	1	RBI 307 SLEEVE
91215010	3	1	PIN
93430045	4	1	SPRING
90620005	5	1	BUSH
90245100	6	31	BALL 2 MM DIA
90505025	7	1	BODY
90405295	8	1	NEEDLE CAGE
90405165	9	1	NEEDLE CAGE
RC-93440010	10	1	WASHER
93605050	11	1	CIRCLIPS
90255005	12	1	PLUG
90495020	13	1	LOCKNUT
93430020	14	1	SPRING
94215020	15	1	VERNIER ASSEMBLY
90815075	16	1	THREADED + TAPPED BASE
90815075W	16B	1	THREADED + TAPPED BASE LARGE WINDOW
90225005	17	1	RING
90825210	18	1	ROTARY NOSE PIECE
90825015	19	1	HARD CHROME STEEL NOSE
90825020	20	1	NYLON NOSE PIECE
90815105	21	1	THREADED MOUNTING BASE
90815105W	21B	1	THREADED MOUNTING BASE
90225010	22	1	RING
90825205	23	1	ROTARY NOSE PIECE
90825080	24	1	HARD CHROME STEEL NOSE
90825085	25	1	NYLON NOSE PIECE
90815084	26	1	OFFSET MOUNTING BASE
90815084W	26B	1	OFFSET MOUNTING BASE LARGE WINDOW
93045015	27	3	NYLON PIN
90815078	28	1	THREADED MOUNTING BASE WITH VACUUM
90815078W	28B	1	THREADED MOUNTING BASE LARGE WINDOW WITH VACUUM
90815103	29	1	THREADED MOUNTING BASE WITH VACUUM
90815103W	29B	1	THREADED MOUNTING BASE LARGE WINDOW WITH VACUUM
90811085	26 + 27		OFFSET MOUNTING BASE + NYLON PIN
90811085W	26 + 27		OFFSET MOUNTING BASE LARGE WINDOW + NYLON PIN

    

Technical Data

    
                Shank: Ø 6mm | 0.236in dia
                Weight: 155 - 165 g
            
                Cutter thread: RB 307 M8 X 1 | RBI 307 1/4"-28"
                Overall length maxi: 98mm | 3.85in
            
                Stroke: 7mm | 0.275in
                Overall length mini: 88mm | 3.46in
            
                Ext. Maxi: Ø 29mm | 1.141in  dia