Hole saws - Bi-metal

Bimetal hole saws

(CMT551-TREPAN)

Teeth are alternate and side set. Ideal for mild steel stainless steel, non-ferrous metals, aluminium, cast iron, copper, zinc.

TECHNICAL FEATURES :
- Perfect round back plate.
- Fast & easy center drill change.
- Thick steel body.
Bimetal Plus 8% CobaltPremium bi-metal with 8% cobalt provides Xtreme results in performance and up to 50% longer lifetime than the competition.
Tooth designSpecial tooth geometry with regular pitch provides a smoother cut and better chip clearance preventing clogging and heat build-up. Teeth are alternate & side set to minimize binding and friction, requiring less feed pressure.

Materials :
- Metals (up to 1000 N/mm2 strenght).
- Mild steel.
- Stainless steel.
- Non-ferrous metals, aluminium.
- Sandwich materials.
- Cast Iron.
- Copper, zinc, brass.
Speed kills! Operating at higher speeds than those recommended will shorten hole saw life and produce very inefficient cutting.

D	l	L	Metal RPM	Stainless steel RPM	Cast iron RPM	Aluminium RPM	Code
16	38	45	550	270	370	800	CMT551-016
19	38	45	470	230	310	670	CMT551-019
20	38	45	440	220	290	640	CMT551-020
22	38	45	400	200	270	580	CMT551-022
25	38	45	350	170	230	510	CMT551-025
27	38	45	330	160	220	470	CMT551-027
29	38	45	310	150	200	440	CMT551-029
30	38	45	300	140	190	430	CMT551-030
32	38	45	280	140	180	400	CMT551-032
35	38	45	250	120	170	370	CMT551-035
38	38	45	230	110	150	340	CMT551-038
40	38	45	220	110	150	320	CMT551-040
43	38	45	210	100	140	300	CMT551-043
44	38	45	200	100	130	290	CMT551-044
48	38	45	180	90	120	270	CMT551-048
51	38	45	170	85	110	250	CMT551-051
52	38	45	160	80	110	240	CMT551-052
54	38	45	160	80	110	240	CMT551-054
57	38	45	160	75	100	220	CMT551-057
64	38	45	140	70	90	205	CMT551-064
65	38	45	140	70	90	205	CMT551-065
70	38	45	130	60	80	185	CMT551-070
73	38	45	120	60	80	180	CMT551-073
79	38	45	110	55	70	165	CMT551-079
83	38	45	105	50	70	155	CMT551-083
89	38	45	100	50	65	145	CMT551-089
92	38	45	95	45	60	140	CMT551-092
102	38	45	85	45	55	130	CMT551-102
105	38	45	80	40	55	120	CMT551-105
108	38	45	80	40	55	120	CMT551-108
114	38	45	80	40	55	120	CMT551-114
127	38	45	70	35	45	90	CMT551-127
133	38	45	65	35	45	90	CMT551-133
140	38	45	65	30	40	85	CMT551-140
152	38	45	55	25	35	75	CMT551-152
168	38	45	55	25	35	75	CMT551-168