Besly Counterbores - Catalog No. 971



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Besly Counterbore
Sets

High Speed Steel
Straight Shank

Machine Screw and
Fractional Sizes

Machine Screw Sizes:
Set No. 3 | Set No. 4

Fractional Sizes:
Set No. 1 | Set No. 1-S |
Set No. 5 | Set No. 5-S

Catalog Number: 972

Besly Counterbore Sets

Besly Counterbore sets provide a selection of counterbores for every need in machine shops, tool rooms, prototype laboratories and general industrial use.

Please call 800 435-2965 for current prices.

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	Besly Counterbore Sets Catl No. 972 Machine Screw Sizes

Set No.	EDP No	Pkg Qty	Counterbore Catl No.	Screw Size	Pilot Size	Cutting Size
No. 3	22528	1	968	2	.085	.155
				3	.098	.176
				4	.111	.198
				5	.124	.220
				6	.137	.241
				8	.163	.285
				10	.189	.328
				12	.215	.372
No. 4	22529	1	971	2	.085	.172
				3	.098	.199
				4	.111	.225
				5	.124	.252
				6	.137	.279
				8	.163	.332
				10	.189	.385
				12	.215	.438


	Besly Counterbores Sets Catl No. 972 Fractional Sizes

Set No.	EDP No	Pkg Qty	Counterbore Catl No.	Screw Size	Pilot Size	Cutting Size
No. 1	22519	1	966	1/4	1/4	13/32
				5/16	5/16	15/32
				3/8	3/8	19/32
				1/2	1/2	25/32
				5/8	5/8	29/32
No. 1-S	22526	1	966	1/4	1/4	3/8
				5/16	5/16	7/16
				3/8	3/8	9/16
				1/2	1/2	3/4
				5/8	5/8	7/8
No. 5*	22536	1	966	1/4	1/4	13/33
				5/16	5/16	1/2
				3/8	3/8	19/32
				1/2	1/2	27/32
				5/8	5/8	31/32
No. 5-S*	22537	1	966	1/4	1/4	3/8
				5/16	5/16	15/32
				3/8	3/8	9/16
				1/2	1/2	3/4
				5/8	5/8	15/16
* For '1960 Series' Socket Head Cap Screws.

Sales Office

16200 Woodmint Lane

South Beloit, IL 61080

(815) 389-2231

fax (815) 389-1339 sales@besly.com