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HSS Twist Drill Bit Straight Shank HSS-4341 for Hard Metal,Cast Iron,1-20mm

Short Description:

1. Material: HSS-4341.

2.Operation Guide: The bottoms of micro drill bits are specially designed for operating easily.

3.Multi-purpose Use: Drills accurate and clean holes in thinner, low hardness of wood and soft-metal hole processing, for home repairs and light jobs.

4.Meet Your Demands: Great drill bits set for metal/wood/plastic sink. Suitable for Home DIY, and General Building/Engineering Use.

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Product Detail

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Product Description

1.Bright finish: Classic 4341 High Speed Steel construction with Bright Finish for proven capability and durability.

2.Strength & Hardness: Made with HSS 4341 steel, Rock wall Hardness Level HRC 61-62

3.Package & Size: 5 Pieces in a plastic bag,or in plastic box
4.Professional & DIY Use: For use on metal, wood & plastics. Not For Use On Concrete / Masonry / Stainless Steel. Perfect match for workshop or service vehicles.

5.118°Twist Design: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster.

Material	HSSM42, HSSM35, HSSM2(6542), HSS4341, HSS4241
Process	fully ground, edge ground/half ground, roll forged, milled
Standard	DIN338, DIN340, DIN1897, DIN1869
Split Point	118°and 135° tip both available
Stamping	laser marking and (letter) stamping.
Shank	Straight shank(Tri-Flats shank,Hex shank,Round shank,Morse taper shank)
Available Packing	single sleeve packing, sandwich packing, blister packing, square plastic box packing( with hanger or without hanger), Bosch plastic box packing, flat plastic box packing, 5/10 PVC bag packing, paper bag,
Surface Color	black flute & golden shank, black flute & white shank, bright finished, black oxide,Tin-coated, amber(coffee) finished.
Diameter Zize	0.5-20mm. 1/16"-1", A-Z, 1# - 90#
Total Length	2.5-140mm
Features	1.HSS 4241 drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer. 2.No center punch is needed—the aggressive 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". 3.Precision ground point, flutes, body, clearance and drill diameter for the ultimate in accuracy and performance.
Shipping	Express delivery, air shipping, sea shipping，Usual delivery time is 5-10days after receiving the advance payment; For the customized product, 15-30 days after receiving the advance payment.

Product Details

118° and 135° split points

The 118° point angle is mainly used for softer materials such as mild steel and cast iron.
The 135° split point is used for cutting hard steel, especially for deep holes that are more than 4 times the diameter of the drill bit. Using the 135° split point, cutting harder materials produces thicker chips, minimizing work hardening of the cavity.

Spiral fluted shank

Fully ground body construction. High flow spiral design for the fastest removal speed and for thick material

Straight shank

Straight shank for standard chuck,
less "walking" or "wandering."
The end of the shank is chamfered
to allow an easy and firm grip.
Special SST heat treatment of bronze
and surface.

HSS Twist Drill Bits RPM

NOTE: Bigger diameters, slower rotation speed.

Twist Drill Bits Diameters(mm)	RPM(R/Min)	Application
1mm-2mm	3000-1800(r/min)
2mm-3mm	1800-1400(r/min)
3mm-4mm	1400-1000(r/min)
4mm-5mm	1000-800(r/min)
5mm-6mm	800-700(r/min)
6mm-7mm	700-600(r/min)
7mm-8mm	600-500(r/min)
8mm-9mm	500-400(r/min)
9mm-10mm	400-350(r/min)
10mm-11mm	350-300(r/min)
11mm-12mm	300-280(r/min)
12mm-13mm	280-250(r/min)
14mm	220(r/min)
15mm	200(r/min)

FAQ

Q: Are you professional manufacturer of HSS twist drill bits?
A: Yes,JIANGSU HAOKE MATERIAL TECH CO.,LTD is a professional factory that main products is HSS TWIST DRIL BITS.Following took a few photos of our workshop production and warehouse.

Q: Is OEM available?
A: Yes, OEM and customization are available. Graved logo marker,Laser logo marker,, customized packing. Printed Inner box, Carton box.

Q: Are samples available?
A: Yes, you can ask some samples for testing after confirming our prices, but please pay the sample and freight fee, the sample fee will be returned to you after you making official order.

Q: What is your payment terms?
A: T/T,L/C,D/A,D/P,Paypal,Western Union,for different circumstances.

Q: What's your delivery way?
A: Express delivery, air shipping, sea shipping are available for your request.

Q: What's your delivery time?
A: Usual delivery time is 5-10days after receiving the advance payment; For the customized product, 15-30 days after receiving the advance payment.

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