High Speed Steel Carbide gun drill GD

Product Features:

Ten years' experience in factory production

A variety of sizes for choose

Passed ISO9001:2000

Excellent after-sales

OEM

Business Terms:

Port: CN air or sea port

Minimum Order Quantity: 1 Piece/Pieces

Supply Ability: 1000 Piece/Pieces per Week

Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram

Contact Supplier

Specifications and Product Details:

Specifications for gun drills that can be produced by our Company:

Φ4mm--Φ35mm unitary carbide bit

Φ30mm-Φ45mm mosaic carbide bit

The length of gun drills produced by our company can fully be customized by our customers. When ordering, please specify the following information including: blade number, blade diameter “d”, overall length “L”and handle size.

ISO	Material		Special cutting force N/ mm²	Brinell hardness HB	Cutting speed V,m/min	Diameter of drill, mm
						0.98-3.00	3.00-6.30	6.00-12.50	12.50-40.50
						Feed rate, mm/r
P steel	Un-alloyed	Non-quenched0.1-0.25‰	2000	90-200	60-120	0.003-0.010	0.005-0.030	0.015-0.055	0.020-0.110
		Non-quenched0.25-0.55‰	2100		50-120	0.003-0.010	0.005-0.030	0.015-0.055	0.020-0.110
		Non-quenched0.55-0.80‰	2180	150-250	40-100	0.003-0.010	0.004-0.025	0.010-0.050	0.020-0.100
	Low alloy	Non-quenched	2100	150-260	40-120	0.003-0.010	0.004-0.030	0.010-0.055	0.020-0.110
	Low alloy	Quenching and tempering	2775	220-450	40-120	0.003-0.010	0.004-0.025	0.010-0.050	0.020-0.100
	High alloy	Annealing	2500	150-250	40-100	0.003-0.010	0.004-0.025	0.010-0.050	0.020-0.100
	High alloy	Quenching tool steel	3750	250-350	50-100	0.003-0.010	0.005-0.025	0.015-0.050	0.030-0.100
	High cast steel	Un-alloyed	1800	90-225	50-120	0.003-0.010	0.005-0.030	0.015-0.055	0.020-0.110
	High cast steel	Low alloy(alloying element<5%)	2100	150-250	40-100	0.003-0.010	0.004-0.025	0.010-0.050	0.020-0.100
Stainless steel	Tracked/forged	Ferrite and martensite	2300	150-270	40-90	0.003-0.008	0.004-0.025	0.010-0.040	0.020-0.100
	Tracked/forged	Non-quenched	2300	150-270	40-90	0.003-0.008	0.004-0.025	0.010-0.040	0.020-0.100
	Tracked/forged	Austenite	2600	150-275	40-90	0.003-0.008	0.004-0.025	0.010-0.040	0.020-0.100

K cast iron	Malleable cast iron	Ferrite	950	110-145	70-90	0.005-0.010	0.008-0.030	0.020-0.070	0.050-0.190
	Malleable cast iron	Pearlite	1100	150-270	60-90	0.004-0.010	0.006-0.030	0.010-0.070	0.030-0.790
	Grey cast iron	Low tensile strength,	1100	150-220	60-90	0.004-0.010	0.006-0.030	0.010-0.070	0.030-0.190
	Grey cast iron	High tensile strength	1290	200-330	15-90	0.003-0.010	0.003-0.030	0.005-0.070	0.010-0.190
	Ductile cast iron	Ferrite	1050	125-230	70-90	0.005-0.010	0.006-0.030	0.020-0.070	0.050-0.190
	Ductile cast iron	Pearlite	1750	200-300	60-90	0.004-0.010	0.006-0.030	0.010-0.070	0.030-0.190
N non-ferrous metal	Alloy	Casting, non aging	750	40-100	65-300	0.005-0.015	0.005-0.030	0.020-0.070	0.030-0.150
	Steel and steel alloy	Free-cutting alloy pb>1%	700	70-160	65-300	0.005-0.015	0.005-0.040	0.020-0.070	0.030-0.150
	Steel and steel alloy	Copper, leaded bronze pb≤1%	700	50-200	65-300	0.005-0.015	0.006-0.040	0.020-0.070	0.030-0.150