DRILLSIZE

Drill Size Conversion Table

Tap Drill Size Calculator

2022 IGN

Fract. (in)	Decimal	Wire No. /Letter	Metric (mm)	Fract. (in)	Decimal	Wire No. /Letter	Metric (mm)	Fract. (in)	Decimal	Wire No. /Letter	Metric (mm)
Fract. (in)	Decimal	Wire No. /Letter	Metric (mm)		Fract. (in)	Decimal	Wire No. /Letter	Metric (mm)		Fract. (in)	Decimal	Wire No. /Letter	Metric (mm)

	0.0098		0.25			0.1065	36				0.3480	S
	0.0118		0.30		7/64	0.1094					0.3543		9.00
	0.0135	80				0.1100	35				0.3580	T
	0.0138		0.35			0.1102		2.80		23/64	0.3594
	0.0145	79				0.1110	34				0.3680	U
1/64	0.0156					0.1130	33				0.3740		9.50
	0.0157		0.40			0.1142		2.90		3/8	0.3750
	0.0160	78				0.1160	32				0.3770	V
	0.0177		0.45			0.1181		3.00			0.3860	W
	0.0180	77				0.1200	31			25/64	0.3906
	0.0197		0.50		1/8	0.1250					0.3937		10.00
	0.0200	76				0.1285	30				0.3970	X
	0.0210	75				0.1360	29				0.4040	Y
	0.0217		0.55			0.1378		3.50		13/32	0.4063
	0.0225	74				0.1405	28				0.4130	Z
	0.0236		0.60		9/64	0.1406					0.4134		10.50
	0.0240	73				0.1440	27			27/64	0.4219
	0.0250	72				0.1470	26				0.4331		11.00
	0.0256		0.65			0.1495	25			7/16	0.4375
	0.0260	71				0.1520	24				0.4528		11.50
	0.0276		0.70			0.1540	23			29/64	0.4531
	0.0280	70			5/32	0.1563				15/32	0.4688
	0.0292	69				0.1570	22				0.4724		12.00
	0.0295		0.75			0.1575		4.00		31/64	0.4844
	0.0310	68				0.1590	21				0.4921		12.50
1/32	0.0313					0.1610	20			1/2	0.5000
	0.0315		0.80			0.1660	19				0.5118		13.00
	0.0320	67				0.1695	18			33/64	0.5156
	0.0330	66			11/64	0.1719				17/32	0.5313
	0.0335		0.85			0.1730	17				0.5315		13.50
	0.0350	65				0.1770	16			35/64	0.5469
	0.0354		0.90			0.1772		4.50			0.5512		14.00
	0.0360	64				0.1800	15			9/16	0.5625
	0.0370	63				0.1820	14				0.5709		14.50
	0.0374		0.95			0.1850	13			37/64	0.5781
	0.0380	62			3/16	0.1875					0.5905		15.00
	0.0390	61				0.1890	12			19/32	0.5938
	0.0394		1.00			0.1910	11			39/64	0.6094
	0.0400	60				0.1935	10				0.6102		15.50
	0.0410	59				0.1960	9			5/8	0.6250
	0.0420	58				0.1968		5.00			0.6299		16.00
	0.0430	57				0.1990	8			41/64	0.6406
	0.0433		1.10			0.2010	7				0.6496		16.50
	0.0465	56			13/64	0.2031				21/32	0.6563
3/64	0.0469					0.2040	6				0.6693		17.00
	0.0472		1.20			0.2055	5			43/64	0.6719
	0.0512		1.30			0.2090	4			11/16	0.6875
	0.0520	55				0.2130	3				0.6890		17.50
	0.0550	54				0.2165		5.50		45/64	0.7031
	0.0551		1.40		7/32	0.2188					0.7087		18.00
	0.0591		1.50			0.2210	2			23/32	0.7188
	0.0595	53				0.2280	1				0.7283		18.50
1/16	0.0625					0.2340	A			47/64	0.7344
	0.0630		1.60		15/64	0.2344					0.7480		19.00
	0.0635	52				0.2362		6.00		3/4	0.7500
	0.0669		1.70			0.2380	B			49/64	0.7656
	0.0670	51				0.2420	C				0.7677		19.50
	0.0700	50				0.2460	D			25/32	0.7813
	0.0709		1.80		1/4	0.2500	E				0.7874		20.00
	0.0730	49				0.2559		6.50		51/64	0.7969
	0.0748		1.90			0.2570	F				0.8071		20.50
	0.0760	48				0.2610	G			13/16	0.8125
5/64	0.0781				17/64	0.2656					0.8268		21.00
	0.0785	47			0.2660	H		53/64	0.8281
	0.0787		2.00		0.2720	I		27/32	0.8438
	0.0810	46			0.2756		7.00		0.8465		21.50
	0.0820	45			0.2770	J		55/64	0.8594
	0.0827		2.10		0.2810	K			0.8661		22.00
	0.0860	44		9/32	0.2813			7/8	0.8750
	0.0866		2.20		0.2900	L			0.8858		22.50
	0.0890	43			0.2950	M		57/64	0.8906
	0.0906		2.30		0.2953		7.50		0.9055		23.00
	0.0935	42		19/64	0.2969			29/32	0.9063
3/32	0.0938				0.3020	N		59/64	0.9219
	0.0945		2.40	5/16	0.3125				0.9252		23.50
	0.0960	41			0.3150		8.00	15/16	0.9375
	0.0980	40			0.3160	O			0.9449		24.00
	0.0984		2.50		0.3230	P		61/64	0.9531
	0.0995	39		21/64	0.3281				0.9646		24.50
	0.1015	38			0.3320	Q		31/32	0.9688
	0.1024		2.60		0.3346		8.50		0.9842		25.00
	0.1040	37			0.3390	R		63/64	0.9844
	0.1063		2.70	11/32	0.3438			1	1.0000

Phone: 1-800-929-0984

Fax: 1-888-799-3776

EDDYVILLE RACEWAY

Track Address: Eddyville Raceway Park 3260 Merino Avenue Oskaloosa, Iowa. 52577

Mailing Address: Eddyville Raceway Park 2462 Highway 163 Pella, Iowa 50219

Track Phone - 641.969.5596
manager@eddyvilleraceway.com

J.K.N. Enterprises
241 W. Oak Street - Washington C.H., OH 43160

Mobile: 740-505-9295
Phone: 740-335-3443
Email: sales@rapidroofremover.com

Drill Size Conversion Table

EDDYVILLE RACEWAY

Track Address: Eddyville Raceway Park 3260 Merino Avenue Oskaloosa, Iowa. 52577 Mailing Address: Eddyville Raceway Park 2462 Highway 163 Pella, Iowa 50219 Track Phone - 641.969.5596 manager@eddyvilleraceway.com

Track Address: Eddyville Raceway Park 3260 Merino Avenue Oskaloosa, Iowa. 52577

Mailing Address: Eddyville Raceway Park 2462 Highway 163 Pella, Iowa 50219

Track Phone - 641.969.5596
manager@eddyvilleraceway.com