7° Tapred Drilling Tool

• Raw material: It is 55SiMnMo, 320*480 large-section continuous casting billet, then rolling into 150*150 square billet after inserting core rod and  seamless pipe.

• Production process: involving multiple processes, such as steel rolling, forging, normalizing, quenching and tempering, etc.

• Brand: QSAAA, QSAA, GTIII, G30

• Shank size: H22*108mm/ H25*108mm/H25*159mm.

• Angle: 7 /11/12 degree.

• Package: 5 pieces with a small bundle, 50 or 100 pieces with a big bundle.

Quality Level

According to the different choices of customers, we offer four quality products, including Grade A, Grade B, Grade C and Grade D. Customers can choose suitable drill rod according to different hardness of rock and types of rock drilling tools. Grade A drill rod QSAAA and GTIII can be applied to solid rock, III level or above and f≥12 rocks according to Protodikonov’s Hardness Coefficient of Rock. Grade B drill rod QSAA and G30 is suitable for IV level or above and f≥12 rocks, Grade C and Grade D drill rod suitable for IV level or below and f≤8 rocks.

Button bit (7°)	Dimensions (D)		Flushing hole (mm)		Buttons (mm)		Angle	Part no.
	mm	inch	Front No size	Gauge No size	Front No size	Front No size
H22	32 34 36 38 41	1 1/4” 1 11/32” 1 13/32” 1 1/2” 1 5/8”	1×4 1×4 1×4.5 1×4.5 1×5	2×4 2×4 2×4.5 2×5 2×5	5×7 5×7 5×8 5×8 5×9	2×7 2×7 2×7 2×7 2×7	40° 40° 40° 40° 40°	30322207-07 30342207-07 30362207-07 30382207-07 30412207-07
H22	34 36 38 41	1 11/32” 1 13/32” 1 1/2” 1 5/8”	1×4 1×4.5 1×4.5 1×5	2×4 2×4.5 2×5 2×5	6×7 6×7 6×8 6×8	2×7 2×7 2×8 2×8	35° 35° 35° 35°	30342208-07 30362208-07 30382208-07 30412208-07
H25	36 38 41 43	1 13/32” 1 1/2” 1 5/8” 1 11/16”	1×4.5 1×4.5 1×5 1×5	2×4.5 2×5 2×5 2×5	5×8 5×8 5×9 5×9	2×7 2×7 2×7 2×8	35° 35° 35° 35°	30362507-07 30382507-07 30412507-07 30432507-07

Chisel bit

H22	30 32 34 36 38 40	1 3/16” 1 1/4” 1 11/32” 1 27/64” 1 1/2” 1 37/64”	1×5 1×5 1×5 1×5 1×5.5 1×5.5	– – – – – –	– – – – – –	– – – – – –	– – – – – –	313022-07 313222-07 313422-07 313622-07 313822-07 314022-07
H25	36 38 41 43	1 13/32” 1 1/2” 1 5/8” 1 11/16”	1×5 1×5.5 1×5.5 1×5.5	– – – –	– – – –	– – – –	– – – –	313625-07 313825-07 314125-07 314325-07

Tapered drill rod (7°)	Dimensions L			Dimensions D		Part no.
	mm	ft	inch	mm	inch
Hex shank 22*108mm	600 800 1200 1600 2400 3200 4000	2 2 3 5 7 10 13	– 7 11 3 10 6 1	22 22 22 22 22 22 22	7/8 7/8 7/8 7/8 7/8 7/8 7/8	10220607 10220807 10221207 10221607 10222407 10223207 10224007
Hex shank 25*108mm	800 1600 2400 3200 4000	2 5 7 10 13	7 3 10 6 1	25 25 25 25 25	1 1 1 1 1	10251207 10251807 10252407 10253007 10254007