28 sizes · WERTEC

WTA Vacuum-Brazed Diamond Core Bits M14 for Porcelain (6–125 mm)

Dry-drilling core bits for angle grinders with M14 thread – porcelain, sintered stone, ceramic tiles, natural stone and glazed tiles. 28 diameters.

M14 thread – screws directly onto the angle grinder
Vacuum-brazed diamond (above 1000 °C)
Dry drilling, 10,000–14,000 rpm
Working length 60 mm (30, 42, 48 mm: 65 mm)
6 to 125 mm

Available through WERTEC distributors. Send an enquiry – we will tell you where to buy in your country.

WTA core bits fit an angle grinder with an M14 thread and drill holes for pipes, conduits, drains and fittings in porcelain stoneware, sintered stone, ceramic tiles, natural stone, porcelain and glazed tiles. The geometry limits chipping and leaves smooth hole walls.

The diamond is vacuum-brazed at over 1000 °C onto a high-strength steel body. WTA bits work dry.

How to drill: start at a slight angle and, once the diamond has cut into the glaze, hold the bit perpendicular; moderate pressure is enough; take short breaks and remove debris from inside the bit.

Sizes and codes

Code	Diameter	Working length	EAN
WTA06	6 mm	60 mm	5901721732506
WTA08	8 mm	60 mm	5901721732513
WTA10	10 mm	60 mm	5901721732520
WTA12	12 mm	60 mm	5901721732537
WTA14	14 mm	60 mm	5901721732544
WTA16	16 mm	60 mm	5901721732551
WTA18	18 mm	60 mm	5901721733602
WTA20	20 mm	60 mm	5901721732568
WTA25	25 mm	60 mm	5901721732575
WTA28	28 mm	60 mm	5901721733923
WTA30	30 mm	65 mm	5901721732650
WTA32	32 mm	60 mm	5901721735873
WTA35	35 mm	60 mm	5901721732582
WTA40	40 mm	60 mm	5901721734821
WTA42	42 mm	65 mm	5901721732643
WTA45	45 mm	60 mm	5901721733930
WTA48	48 mm	65 mm	5901721732667
WTA50	50 mm	60 mm	5901721734371
WTA55	55 mm	60 mm	5901721732599
WTA60	60 mm	60 mm	5901721732605
WTA65	65 mm	60 mm	5901721732612
WTA68	68 mm	60 mm	5901721732629
WTA80	80 mm	60 mm	5901721732636
WTA85	85 mm	60 mm	5901721730731
WTA100	100 mm	60 mm	5901721735880
WTA102	102 mm	60 mm	5901721734838
WTA120	120 mm	60 mm	5901721733664
WTA125	125 mm	60 mm	5901721734920

Code	Diameter	Working length	EAN
WTA06	6 mm	60 mm	5901721732506
WTA08	8 mm	60 mm	5901721732513
WTA10	10 mm	60 mm	5901721732520
WTA12	12 mm	60 mm	5901721732537
WTA14	14 mm	60 mm	5901721732544
WTA16	16 mm	60 mm	5901721732551
WTA18	18 mm	60 mm	5901721733602
WTA20	20 mm	60 mm	5901721732568
WTA25	25 mm	60 mm	5901721732575
WTA28	28 mm	60 mm	5901721733923
WTA30	30 mm	65 mm	5901721732650
WTA32	32 mm	60 mm	5901721735873
WTA35	35 mm	60 mm	5901721732582
WTA40	40 mm	60 mm	5901721734821
WTA42	42 mm	65 mm	5901721732643
WTA45	45 mm	60 mm	5901721733930
WTA48	48 mm	65 mm	5901721732667
WTA50	50 mm	60 mm	5901721734371
WTA55	55 mm	60 mm	5901721732599
WTA60	60 mm	60 mm	5901721732605
WTA65	65 mm	60 mm	5901721732612
WTA68	68 mm	60 mm	5901721732629
WTA80	80 mm	60 mm	5901721732636
WTA85	85 mm	60 mm	5901721730731
WTA100	100 mm	60 mm	5901721735880
WTA102	102 mm	60 mm	5901721734838
WTA120	120 mm	60 mm	5901721733664
WTA125	125 mm	60 mm	5901721734920

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Mounting	M14 thread (angle grinder)
Working speed	10,000–14,000 rpm
Construction	vacuum-brazed diamond, high-strength steel body
Operation	dry
Materials	porcelain stoneware, sintered stone, ceramic tiles, natural stone, porcelain, glazed tiles
Brand	WERTEC