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Variable Pitch Hole Saws

Models M14 - M152

Outperform and outlast traditional standard pitch models. Bi-metal construction with teeth made from specially hardened type M3 high speed steel. The varying teeth height and gullet sizes result in much faster cutting and longer life. For wood; mild, tool and stainless steels; cast iron; brass and aluminum. 51 sizes from 9/16” (14mm) to 6” (152mm).

Features

	Depth of cut: 1 1/8” (28 mm).
	Use RIDGID Thread Cutting Oil on all metal except cast iron.

Ordering Information

Cat. No.	Model No.	Saw Size & Hole Diameter		Nominal Pipe Sizes (in.)		Nominal Pipe Sizes (mm)
Cat. No.	Model No.	in.	mm	Top Drill Size	Body Drill Size	Tap Drill Size	Body Drill Size
52755	M14	9/16	14	-	-	-	-
52760	M16	5/8	16	-	-	-	-
52765	M17	1 1/16	17	-	-	-	-
52770	M19	3/4	19	-	3/8	-	10
52775	M22	1 3/16	21	-	-	-	-
52780	M24	7/8	22	3/4	1/2	20	12
52785	M25	1 5/16	24	-	-	-	-
52790	M27	1	25	-	-	-	-
52795	M28	1 1/16	27	-	-	-	-
52800	M29	1 1/8	29	1	3/4	25	20
52805	M30	1 3/16	30	-	-	-	-
52810	M32	1 1/4	32	-	-	-	-
52815	M33	1 5/16	33	-	-	-	-
52820	M35	1 3/8	35	-	1	-	25
52825	M37	1 7/16	37	-	-	-	-
52830	M38	1 1/2	38	1 1/4	-	32	-
52835	M40	1 9/16	40	-	-	-	-
52840	M41	1 5/8	41	-	-	-	-
52845	M43	1 11/16	43	-	-	-	-
52850	M44	1 3/4	44	1 1/2	1 1/4	40	32
52855	M46	1 13/16	46	-	-	-	-
52860	M48	1 7/8	48	-	-	-	-
52865	M51	2	51	-	1 1/2	-	40
52870	M52	2 1/16	52	-	-	-	-
52875	M54	2 1/8	54	-	-	-	-
52880	M57	2 1/4	56	2	-	50	-
52885	M59	2 5/16	59	-	-	-	-
52890	M60	2 3/8	50	-	-	-	-
52895	M64	2 1/2	64	-	2	-	50
52900	M65	2 9/16	65	-	-	-	-
52905	52905	2 5/8	67	-	-	-	-
52910	M70	2 3/4	70	-	-	-	-
52915	M73	2 7/8	73	-	-	-	-
52920	M76	3	76	-	2 1/2	-	64
52925	M79	3 1/8	79	-	-	-	-
52930	M83	3 1/4	83	3	75	-	-
52935	M86	3 3/8	86	-	-	-	-
52940	M89	3 1/2	89	-	-	-	-
52945	M92	3 5/8	92	-	3	-	75
52950	M95	3 3/4	95	3 1/2	-	90	-
52955	M98	3 7/8	98	-	-	-	-
52960	M102	4	102	-	-	-	-
52965	M105	4 1/8	105	-	3 1/2	-	90
52970	M108	4 1/4	108	-	-	-	-
52975	M110	4 3/8	110	-	-	-	-
52980	M114	4 1/2	114	-	4	-	-
52985	M121	4 3/4	121	-	-	-	-
52990	M127	5	127	-	-	-	-
52995	M140	5 1/2	140	-	-	-	-
53000	M152	6	152	-	-	-	-

Note: All weights are under 11/2 lbs. (0.68 kg).

Kits

Catalog No.

Model No.

Description

3/4" 19mm

7/8" 22mm

1 1/8" 29mm

1 3/8" 35mm

1 1/2" 38mm

1 3/4" 44mm

2" 51mm

2 1/4" 57mm

2 1/2" 64mm

2 5/8" 67mm

Arbors

Weight

lb.

81490

1248

Plumber Kit

•

3 3/8

1.5

81495

1249

Electrician Kit

•

3 3/8

1.5

81500

1250

Combination Kit

•

6 1/8

2.8

81505

D-969

12" Arbor Extension

3/4

0.3

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